Digital Pcb
DIY: hard drive data recovery-WD, western digital,PCB Swap
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Kyocera Revolution Paring and Santoku Knife Set Imagine knives which go from months to many years without sharpening. Kyocera utilizes advanced ceramics to create cutlery which combines elegance and strength. Ideal for slicing fruits, vegetables and boneless meats, this Kyocera advanced ceramic knife set has no equal. The knives are waterproof, with shapely ergonomic handles that provide superior grip and control. The sleek, polished, ultra… |
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Hayward GLX-PCB-RITE Main PCB Replacement for Hayward AQR Goldline Aqua Rite Salt Chlorine Generators $191.45 Goldline AquaRite Main Circuit Board… |
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Hayward GLX-PCB-DSP Display PCB Replacement for Select Hayward Salt Chlorine Generators $82.88 Replacement display pcb for aqua rite, aqua trol, natureSoft, Mineral Springs, SplashClear… |
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Infectant $7.99 … |
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Omnibus $7.99 … |
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Because I Love You $2.97 … |
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Kendal INDUSTRAL GRADE 160 WATTS 2.5 LITERS DIGITAL HEATED ULTRASONIC CLEANER $69.00 This brand new Large Industrial Grade Digital Ultrasonic Cleaner has powerful transducer, heater and large tank capacity for superior cleaning results, making it great for professional cleaning. It is the first utilization of digital program in ultrasonic cleaner to control the unit, according to the quantity and condition of the items to be cleaned to choose a working cycle. As a result, it is mo… |
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Delta 18-900L 18-Inch Laser Drill Press $1,424.38 Rugged and versatile enough for professional use, the DELTA 18-900L 18-Inch Laser Drill Press features a heavy-duty motor for powerful performance, and an Auto-Tensioning Belt Drive System for effortless speed changes. Designed to provide the accuracy and precision you need to get the job done right the first time, this tool is ideal for woodworking.18-Inch Laser Drill PressAt a Glance:Provides a … |
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Extech 40180 Tone Generator and Amplifier Probe Circuit Finder Kit $89.99 Heavy duty kit with audible tone easily identifies wires or cables… |
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Clearblue Easy Fertility Monitor Test Sticks, 30 Count (Packaging May Vary) $28.39 Lowest price on 30 Replacement Test Sticks (3-month Supply) for the ClearBlue (ClearPlan) Fertility Monitor. Includes 2 FREE pregnancy tests!… |
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PCB $8 PCB |
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PCB box $3 PCB box |
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PCB BOX $15 PCB BOX |
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PCB Box $12 PCB Box |
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PCB 27mhz $19 PCB 27mhz |
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PCB 40mhz $19 PCB 40mhz |
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PCB 49mhz $19 PCB 49mhz |
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PCB(receiver) $6 PCB(receiver) |
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Pcb $4.99 We believe it is important to preserve what makes music special, and make it easy to craft listening experiences. At MOG, browse millions songs and play them instantly. Or just turn on radio where you can stop and replay songs. You can also create playlists for any occasion, and even download songs to your mobile. We are dedicated to employing the cleanest but most powerful technology so you can enjoy music as much as ever. |
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PCB Labels – PCB Contaminated $37.2 PCB label conforms to EPA – TSCA regulations and appropriately labels PCB contaminated equipment. Appropriately mark your PCB contaminated equipment and waste Reads: “PCB Contaminated Electrical Equipment” Size: 6″W X 6″H |
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TrustFire Protected 14500 Rechargeable Battery with PCB -Gray (2-Pack) $8.49 Overview:TrustFire Protected 900mAh 3.7V Li-ion Li-ion Rechargeable Battery with PCB -Gray (2-Pack)Precise digital protection circuit built-inHigh rate discharge, no memory effectDon’t heat, incinerate or reverse polaritySpecification:TrustFire 14500 900mAh 3.7VDimension(CM):2.8 x 1.4 x 5.2Weight(Kg):0.0411 |
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PCB box 27mhz $8 PCB box 27mhz |
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PCB box 40mhz $8 PCB box 40mhz |
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PCB box 49mhz $8 PCB box 49mhz |
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1.3 Mega Pixel USB Digital Microscope Magnifier Video Camera 200X $21.99 USB Digital Microscope is a good quality to use in Inspection dissection/examination, Plant dissection/examination, Skin examination, Scale examination, Textile Inspection, Jewelry Inspection, Collections/Coin Inspection, Printing Inspection, PCB or PCBA Inspection and so on. The microscope is made up of high-quality IC and elecronic components, with clear image quality, low power consumption, high-resolution, applies to small objects to be larger, photo and video production, is the best choice of small objects recognization. |
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1.3 Mega Pixel USB Digital Microscope Magnifier Video Camera 200X $30.59 USB Digital Microscope is a good quality to use in Inspection dissection/examination, Plant dissection/examination, Skin examination, Scale examination, Textile Inspection, Jewelry Inspection, Collections/Coin Inspection, Printing Inspection, PCB or PCBA Inspection and so on. The microscope is made up of high-quality IC and elecronic components, with clear image quality, low power consumption, high-resolution, applies to small objects to be larger, photo and video production, is the best choice of small objects recognization. |
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1.3 Mega Pixel USB Digital Microscope Video Camera 200X For Printing PCBA Jewelry Coin Inspection $30.59 USB Digital Microscope is a good quality to use in Inspection dissection/examination, Plant dissection/examination, Skin examination, Scale examination, Textile Inspection, Jewelry Inspection, Collections/Coin Inspection, Printing Inspection, PCB or PCBA Inspection and so on. The microscope is made up of high-quality IC and elecronic components, with clear image quality, low power consumption, high-resolution, applies to small objects to be larger, photo and video production, is the best choice of small objects recognization. |
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1.3 Mega Pixel USB Digital Microscope Video Camera 200X For Printing PCBA Jewelry Coin Inspection $29.99 USB Digital Microscope is a good quality to use in Inspection dissection/examination, Plant dissection/examination, Skin examination, Scale examination, Textile Inspection, Jewelry Inspection, Collections/Coin Inspection, Printing Inspection, PCB or PCBA Inspection and so on. The microscope is made up of high-quality IC and elecronic components, with clear image quality, low power consumption, high-resolution, applies to small objects to be larger, photo and video production, is the best choice of small objects recognization. |
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1.3 Mega Pixel USB Digital Microscope Video Camera For Dissection Skin Textile Inspection $21.99 USB Digital Microscope is a good quality to use in Inspection dissection/examination, Plant dissection/examination, Skin examination, Scale examination, Textile Inspection, Jewelry Inspection, Collections/Coin Inspection, Printing Inspection, PCB or PCBA Inspection and so on. The microscope is made up of high-quality IC and elecronic components, with clear image quality, low power consumption, high-resolution, applies to small objects to be larger, photo and video production, is the best choice of small objects recognization. |
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10mm To 250mm Focus Range, 40x To 800x, LED Light USB Digital Microscope Endoscope Magnifier Camera $39.03 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease.Please kindly follow steps to install the software before use.(1) Open the disk and see the ready 2 software.(2) Then install the first software named Setup.exe .(3) Plug the USB Microscope with your equipment after setting up the first software.(4) Set up the 2ND software DrvSetup.exe after connect the USB. (5) Then you could see all the options could be selected, and you could use the item without any problem. |
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1600×1200 2.0 MP USB Digital Microscope endoscope Magnifier Camera 2 Mega Pixels 400-X $33.09 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease. |
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1600×1200 2MP 2 Mega Pixels USB Digital Microscope endoscope Magnifier Camera 400X $32.09 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease. |
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2 MP 400X USB Digital Microscope endoscope Magnifier Camera 1600*1200 For All PC Laptop $39.99 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material…) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease. Discover the small world this season! |
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2 Mega Pixels Digital Microscope Endoscope Magnifier Camera With LED – Magnification 40x To 800x $40.03 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease.Please kindly follow steps to install the software before use.(1) Open the disk and see the ready 2 software.(2) Then install the first software named Setup.exe .(3) Plug the USB Microscope with your equipment after setting up the first software.(4) Set up the 2ND software DrvSetup.exe after connect the USB. (5) Then you could see all the options could be selected, and you could use the item without any problem. |
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2 Mega Pixels Digital Microscope Endoscope Magnifier Video Camera For Laptop Notebook PC $39.03 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease.Please kindly follow steps to install the software before use.(1) Open the disk and see the ready 2 software.(2) Then install the first software named Setup.exe .(3) Plug the USB Microscope with your equipment after setting up the first software.(4) Set up the 2ND software DrvSetup.exe after connect the USB. (5) Then you could see all the options could be selected, and you could use the item without any problem. |
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2.0 MP 400X USB Digital Microscope endoscope Magnifier Camera 1600×1200 $33.09 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material…) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease. Discover the small world this season! |
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2.0 MP Mega Pixels USB Digital Microscope endoscope Magnifier Camera 1600*1200 400X $39.99 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease. |
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2.0 Mega Pixel USB Digital Microscope Magnifier Video Camera $40.99 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease. |
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2.0 Mega Pixel USB Digital Microscope Magnifier Video Camera $38.59 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease. |
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2.0 Mega Pixel USB Digital Microscope Video Camera For Dissection Skin Textile Inspection $32.59 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease. |
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2.0 Mega Pixel USB Digital Microscope Video Camera For Dissection Skin Textile Inspection $38.99 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease. |
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2.0MP 8 LEDs 800X USB Digital Microscope endoscope Magnifier Camera for Laptop Notebook PC $40.03 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease.Please kindly follow steps to install the software before use.(1) Open the disk and see the ready 2 software.(2) Then install the first software named Setup.exe .(3) Plug the USB Microscope with your equipment after setting up the first software.(4) Set up the 2ND software DrvSetup.exe after connect the USB. (5) Then you could see all the options could be selected, and you could use the item without any problem. |
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2.8 LCD ARM DSO Nano Pocket Sized Digital Oscilloscope $74.99 DSO201 is a pocket size digital storage oscilloscope fulfills basic electronic engineering requirements. It is base on ARM compatible 32 bit platform, equipped with 320*240 color display, SD card capability, USB connection, and chargeable batteries. Weighs only 60g!Portable Digital Oscilloscope DIY Kit provides waveform viewing, pocket size and over 2 hours battery operation. This DIY kit is a open source code. The Schematic, PCB layout and program code is free for re-design. It is ideal for production test, research, design and education. |
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2MP 8-LED USB Digital Microscope endoscope Magnifier Camera 40X-800X 1600×1200 $46.99 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease.Please kindly follow steps to install the software before use.(1) Open the disk and see the ready 2 software.(2) Then install the first software named Setup.exe .(3) Plug the USB Microscope with your equipment after setting up the first software.(4) Set up the 2ND software DrvSetup.exe after connect the USB. (5) Then you could see all the options could be selected, and you could use the item without any problem. |
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2MP USB 2.0 Digital Microscope endoscope Magnifier Camera For PC Laptop 400X 1600×1200 $37.99 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material…) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease. Discover the small world this season! |
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40X-800X 2 MP USB Digital Microscope Endoscope Magnifier Camera With 8 LEDs PC Laptop Compatible $41.03 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease.Please kindly follow steps to install the software before use.(1) Open the disk and see the ready 2 software.(2) Then install the first software named Setup.exe .(3) Plug the USB Microscope with your equipment after setting up the first software.(4) Set up the 2ND software DrvSetup.exe after connect the USB. (5) Then you could see all the options could be selected, and you could use the item without any problem. |
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40X-800X 2 MP USB Digital Microscope endoscope Magnifier Camera with 8LEDs for Jewelry Stamp etc. $47.03 USB Digital Microscope is a good quality to use in different fields, Skin inspection, Hair inspection, Industrial inspection (PCB, Material) Education purpose, Print industrial, Textile industrial, Biological inspection, Jewelry & Stamp (collections) inspection and so on. The microscope is designed for PC solution with friendly user interface. The special AP software: Micro-Measure-Tool can support you to have picture, record video and do micro-measure work with ease.Please kindly follow steps to install the software before use.(1) Open the disk and see the ready 2 software.(2) Then install the first software named Setup.exe .(3) Plug the USB Microscope with your equipment after setting up the first software.(4) Set up the 2ND software DrvSetup.exe after connect the USB. (5) Then you could see all the options could be selected, and you could use the item without any problem. |
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ARM DSO Nano Pocket Sized Digital Oscilloscope $66.99 DSO201 is a pocket size digital storage oscilloscope fulfills basic electronic engineering requirements. It is base on ARM compatible 32 bit platform, equipped with 320*240 color display, SD card capability, USB connection, and chargeable batteries. Weighs only 60g!Portable Digital Oscilloscope DIY Kit provides waveform viewing, pocket size and over 2 hours battery operation. This DIY kit is a open source code. The Schematic, PCB layout and program code is free for re-design. It is ideal for production test, research, design and education. |
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ARM DSO Nano Pocket Sized Digital Oscilloscope with 2.8 LCD $67.99 DSO201 is a pocket size digital storage oscilloscope fulfills basic electronic engineering requirements. It is base on ARM compatible 32 bit platform, equipped with 320*240 color display, SD card capability, USB connection, and chargeable batteries. Weighs only 60g!Portable Digital Oscilloscope DIY Kit provides waveform viewing, pocket size and over 2 hours battery operation. This DIY kit is a open source code. The Schematic, PCB layout and program code is free for re-design. It is ideal for production test, research, design and education. |
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ARM DSO Nano Pocket-Sized Portable Digital Oscilloscope $71.99 DSO201is a pocket size digital storage oscilloscope fulfills basic electronic engineering requirements. It is base on ARMCortexM3 compatible 32 bit platform, equipped with 320*240 color display, SD card capability, USB connection, and chargeable batteries. Weighs only 60g!Portable Digital Oscilloscope DIY Kit provides waveform viewing, pocket size and over 2 hoursbatteryoperation. This DIY kit is aopensource code. The Schematic, PCB layout and program code is free for re-design. It is ideal for production test, research, design and education. |
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ARM NANO DSO Portable Digital Storage Oscilloscope $72.99 DSO201is a pocket size digital storage oscilloscope fulfills basic electronic engineering requirements. It is base on ARMCortexM3 compatible 32 bit platform, equipped with 320*240 color display, SD card capability, USB connection, and chargeable batteries. Weighs only 60g!Portable Digital Oscilloscope DIY Kit provides waveform viewing, pocket size and over 2 hoursbatteryoperation. This DIY kit is aopensource code. The Schematic, PCB layout and program code is free for re-design. It is ideal for production test, research, design and education. |
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ASUS EAH4350 Silent Radeon HD 4350 512MB DDR2 PCI Express (PCIe) DVI/VGA Low Profile Video Card w/HDMI & HDCP Support $30.99 ASUS EAH4350 Silent Radeon HD 4350 512MB DDR2 PCI Express Low Profile Video Card General Features: Low Profile PCB ATI Radeon HD 4350 graphics processing unit (GPU) 40 stream processors 600 MHz core clock 512 MB DDR2 memory 64-bit memory interface 800 MHz memory clock PCI Express 2.0 x16 interface Unified Superscalar Architecture Dynamic Geometry Acceleration Advanced anti-aliasing & texture filtering features ATI PowerPlay technology ATI HybridPower technology ATI Avivo HD Video and Display platform ATI Unified Video Decoder Supports Microsoft DirectX 10.1 w/Shader Model 4.1 Supports OpenGL 3.2 HDCP support Native HDMI support Maximum digital resolution: 2560 x 1600 Maximum analog resolution: 2048 x 1536 Silent fanless heat sink Dual slot design Connections: One (1) 15-pin VGA One (1) HDMI out One (1) DVI-I Regulatory Approvals: FCC CE BSMI C-Tick |
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Advanced control techniques for doubly fed induction generator-based wind turbine converters to improve low voltage ride-through during system imbalances. $49.99 A doubly-fed induction generator (DFIG) applied to wind power generation is under study for low voltage ride-through application during system disturbances. Conventional dq axis current control using voltage source converters for both the grid side and the rotor side of the DFIG are analyzed and simulated. DFIG operation is investigated under balanced and unbalanced system disturbances. A conventional d-axis and q-axis control applied to a voltage source converter (VSC) during a system imbalance exhibits oscillations in the stiff DC link voltage as well as in the real and reactive powers of the converter. Multiple advanced control methods are explored and compared for imbalance operations. An advanced control technique utilizing both positive and negative sequence domain is evaluated. The approach demonstrates the stabilization of the DC link voltage to a greater extent during a disturbance but is more sluggish than the conventional control. An innovative control strategy that employs the technique of direct power control (DPC) is also investigated. This control achieves real and reactive power stability with simple active and reactive power control variables replacing the current control loops in the conventional case. A modified DPC algorithm is proposed to eliminate the current harmonics created by DPC during system disturbances. The DPC is further extended to the rotor-side converter of the DFIG thus controlling the complete system using this technique. The DPC is implemented using a three-phase converter designed on a PCB using EagleRTM. A Texas Instruments RTM TMS320F2812 DSP is used to implement the control algorithm. The converter is tested for ride through capability using an industrial power corruptor. The results are compared to the simulation results for compliance with standard grid codes. |
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Advanced control techniques for doubly fed induction generator-based wind turbine converters to improve low voltage ride-through during system imbalances. $49.99 A doubly-fed induction generator (DFIG) applied to wind power generation is under study for low voltage ride-through application during system disturbances. Conventional dq axis current control using voltage source converters for both the grid side and the rotor side of the DFIG are analyzed and simulated. DFIG operation is investigated under balanced and unbalanced system disturbances. A conventional d-axis and q-axis control applied to a voltage source converter (VSC) during a system imbalance exhibits oscillations in the stiff DC link voltage as well as in the real and reactive powers of the converter. Multiple advanced control methods are explored and compared for imbalance operations. An advanced control technique utilizing both positive and negative sequence domain is evaluated. The approach demonstrates the stabilization of the DC link voltage to a greater extent during a disturbance but is more sluggish than the conventional control. An innovative control strategy that employs the technique of direct power control (DPC) is also investigated. This control achieves real and reactive power stability with simple active and reactive power control variables replacing the current control loops in the conventional case. A modified DPC algorithm is proposed to eliminate the current harmonics created by DPC during system disturbances. The DPC is further extended to the rotor-side converter of the DFIG thus controlling the complete system using this technique. The DPC is implemented using a three-phase converter designed on a PCB using EagleRTM. A Texas Instruments RTM TMS320F2812 DSP is used to implement the control algorithm. The converter is tested for ride through capability using an industrial power corruptor. The results are compared to the simulation results for compliance with standard grid codes. |
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Apple I Replica Creation $176.46 FROM THE FOREWORD BY STEVE WOZNIAK The Apple ][ was really the computer designed from the ground up that would kick off personal computing on a large scale. But the Apple I took the biggest step of all. Some very simple concepts are very hard to do the first time. This computer told the world that small computers should never again come with geeky front panels, but rather with human keyboards, ready to type on. 1. BUILD ITWhat’s a little dried blood on the breadboard? A small price to pay for having some fun with multimeters, logic probes, wire-wrap tools, soldering irons, TTL chips, circuit boards, chip pullers, and straighteners.2. PROGRAM ITTough guys don’t code with Visual Studios and Object Libraries. They program their hardware the most efficient and difficult way possible: assembly language.3. PLAY WITH ITOnce you’re done, begin writing software and modifying the hardware design. The results will both impress and scare your friends. Remember, beauty is in the eye of the beholder.4. MODIFY IT.McCAD EDS-SE400 is an integrated Electronic Design System which takes the designer through the complete design cycle: Schematic capture, PCB layout, and board fabrication. McCAD software gives the electronic designer the technical range needed, and at the same time provides control and flexibility. The Apple1 Replica was designed with the McCAD EDS SE400. Additional McCAD Product information can be found at www. McCAD. com Contents of this Book Include: Foreword/Intro1: The History of the Apple 12: Tools and Materials3: Digital Logic4: Building the Replica5: Programming in BASIC6: Programming in Assembly7: Understanding the Apple IAppendix A: ASCIICodesAppendix B: Operation Codes and Status RegisterAppendix C: OpCode MatrixAppendix D: Instructions by CategoryAppendix E: Hacking MacintoshAppendix F: Electrical Engineering Basics |
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Approximation and Optimization (Lecture Notes in Mathematics) $9.98 Used – This book assists engineers both recent graduates and working product designers in designing high-speed circuits. The authors apply circuit theory, circuit simulation tools, and practical experience to help the engineer understand semiconductor modeling as applied to high-speed digital designs. The emphasis is on semiconductor modeling, with PCB transmission line effects, equipment enclosure effects, and other modeling issues discussed as needed. The text addresses many practical consider |
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Aqueous remediation of 4,4′-dichlorobiphenyl by Fenton’s reagent: A study of oxidative degradation, byproduct production, and toxicological effect. $49.99 2-biphenylol (2BP), 3-biphenylol (3BP), 2,2′-biphenyldiol (2,2′BP), 3,3′-biphenyldiol (3,3′BP), 3-chloro-2-biphenylol (3C2BP), and 4,4′-dichloro-3-biphenylol (4,4′DC3BP), considered to be representative of potential byproducts of Fenton’s remediation of polychlorinated biphenyls (PCBs), were studied for the correlation between their chemical/structural properties and observed epigenetic toxicity and cytotoxicity. The scrape-loading/dye transfer (SL/DT) technique was performed to determine the in vitro modulation of gap junctional intercellular communication (GJIC) in a normal rat liver epithelial cell line as a measure of the epigenetic toxicity. Cytotoxicity was determined using the neutral red uptake assay. Only 3,3′BP and 4,4′DC3BP induced cytotoxicity within a dose range of 0 to 300 muM. 4,4′DC3BP was most inhibitory to GJIC at the lowest dose. 3C2BP was least inhibitory to GJIC. Although cells were capable of complete recovery of GJIC after removal of each of the chemicals, only with 2,2′BP and 4,4′DC3BP did the cells demonstrate partial recovery without removal of the chemical. In view of the cytotoxicity and GJIC inhibitory effects observed for 4,4′DC3BP, the PCB congener 4,4′-dichlorobiphenyl (4,4′DCBP) was selected for Fenton’s reagent remediation studies. For toxicology studies performed for 4,4′DCBP, over a dose range of 0 to 260.87 muM, very slight to no inhibition of GJIC was observed for incubation times of 30 minutes, 2 hours, 6 hours, and 24 hours.;The methylene blue (MB) dye test was developed to qualitatively indicate the presence of hydroxyl radicals through an immediate, distinct bleaching of the MB dye on a paper test strip. When applied to Fenton’s remediation, MB dye tests were capable of indicating the formation of hydroxyl radicals during the Fenton’s reaction and indicating the completion of quenching. The presence of hydroxyl radicals was verified by benzoic acid chemical probe hydroxyl radical detection methods using thin layer |
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Aqueous remediation of 4,4′-dichlorobiphenyl by Fenton’s reagent: A study of oxidative degradation, byproduct production, and toxicological effect. $49.99 2-biphenylol (2BP), 3-biphenylol (3BP), 2,2′-biphenyldiol (2,2′BP), 3,3′-biphenyldiol (3,3′BP), 3-chloro-2-biphenylol (3C2BP), and 4,4′-dichloro-3-biphenylol (4,4′DC3BP), considered to be representative of potential byproducts of Fenton’s remediation of polychlorinated biphenyls (PCBs), were studied for the correlation between their chemical/structural properties and observed epigenetic toxicity and cytotoxicity. The scrape-loading/dye transfer (SL/DT) technique was performed to determine the in vitro modulation of gap junctional intercellular communication (GJIC) in a normal rat liver epithelial cell line as a measure of the epigenetic toxicity. Cytotoxicity was determined using the neutral red uptake assay. Only 3,3′BP and 4,4′DC3BP induced cytotoxicity within a dose range of 0 to 300 muM. 4,4′DC3BP was most inhibitory to GJIC at the lowest dose. 3C2BP was least inhibitory to GJIC. Although cells were capable of complete recovery of GJIC after removal of each of the chemicals, only with 2,2′BP and 4,4′DC3BP did the cells demonstrate partial recovery without removal of the chemical. In view of the cytotoxicity and GJIC inhibitory effects observed for 4,4′DC3BP, the PCB congener 4,4′-dichlorobiphenyl (4,4′DCBP) was selected for Fenton’s reagent remediation studies. For toxicology studies performed for 4,4′DCBP, over a dose range of 0 to 260.87 muM, very slight to no inhibition of GJIC was observed for incubation times of 30 minutes, 2 hours, 6 hours, and 24 hours.;The methylene blue (MB) dye test was developed to qualitatively indicate the presence of hydroxyl radicals through an immediate, distinct bleaching of the MB dye on a paper test strip. When applied to Fenton’s remediation, MB dye tests were capable of indicating the formation of hydroxyl radicals during the Fenton’s reaction and indicating the completion of quenching. The presence of hydroxyl radicals was verified by benzoic acid chemical probe hydroxyl radical detection methods using thin layer |
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Boss MCK1450S Combo Kit Mr1400S#44; Mr50W#44; Mrant10 $110.22 Package w/MR1400S Silver HeadunitMR50W White Marine Speakers Dipole Antenna. ISO Din Mounting. Full Detachable Front Panel. 5 Volt Preamp Output. Active Black Matrix Display. PLL Synthesized Tuner. 24 Station Presets. Quartz Digital Clock. CD Mute Function. Track Repeat. Intro Scan. 1 Bit D/A Converter. 8x Oversampling. Front Auxiliary Input. CD/CD-R/CD-RW Compatible. Subwoofer Output. Esp (Anti-Skip Mechanism). Preset Eq Response Curves. Separate Bass And Treble. Balance And Fader Controls. Dual (Front And Rear) Rca Outputs. Loudness. Stereo/Mono And Local/Distance Switches. Id-3 Tag Compatible. Pcb With Conformal Coating. Front Panel UV Coating. Output Power: 60w X 4 Channels |
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Boss MCK1460S Combo Kit Mr1400S#44; Mr60W#44; Mrant10 $113.1 Complete Marine system with marine CD receiver, 6.5 2-way marine speakers, universal marine radio cover and marine dipole antenna.Includes MR1400W, MR60W, MRC5, MRANT10MARINE CD RECEIVERMR1400S (SILVER COLOR)* ISO DIN MOUNTING* FULL DETACHABLE FRONT PANEL* 5 VOLT PREAMP OUTPUT* ACTIVE BLACK MATRIX DISPLAY* PLL SYNTHESIZED TUNER* 24 STATION PRESETS* QUARTZ DIGITAL CLOCK* CD MUTE FUNCTION* TRACK REPEAT* INTRO SCAN* 1 BIT D/A CONVERTER* 8X OVERSAMPLING* FRONT AUXILIARY INPUT* CD/CD-R/CD-RW COMPATIBLE* ESP (ANTI-SKIP MECHANISM)* PRESET EQ RESPONSE CURVES* SEPARATE BASS AND TREBLE* BALANCE AND FADER CONTROLS* DUAL (FRONT AND REAR) RCA OUTPUTS* LOUDNESS* STEREO/MONO AND LOCAL/DISTANCE SWITCHES* ID-3 TAG COMPATIBLE* PCB WITH CONFORMAL COATING* FRONT PANEL UV COATING* OUTPUT POWER – 60W X 4 CHANNELS6.5 2-Way Marine SpeakerPOWER HANDLING, PEAK 200WMAGNET STRUCTURE 40 OzIMPEDANCE 4 OHMFREQUENCY RESPONSE 80HZ-20KHZSPL 1 WATT/1 METER 90dBCONE MATERIAL POLY INJECTIONVOICE COIL 1 ALUMINUMTWEETER 1 MYLAR DOMEGRILLES PLASTIC |
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Boss MCK1460W Combo Kit Mr1400W#44; Mr60W#44; Mrant10 $226 Complete Marine system with marine CD receiver, 6.5 2-way marine speakers, universal marine radio cover and marine dipole antenna.Includes MR1400W, MR60W, MRC5, MRANT10MARINE CD RECEIVERMR1400W (WHITE COLOR)* ISO DIN MOUNTING* FULL DETACHABLE FRONT PANEL* 5 VOLT PREAMP OUTPUT* ACTIVE BLACK MATRIX DISPLAY* PLL SYNTHESIZED TUNER* 24 STATION PRESETS* QUARTZ DIGITAL CLOCK* CD MUTE FUNCTION* TRACK REPEAT* INTRO SCAN* 1 BIT D/A CONVERTER* 8X OVERSAMPLING* FRONT AUXILIARY INPUT* CD/CD-R/CD-RW COMPATIBLE* ESP (ANTI-SKIP MECHANISM)* PRESET EQ RESPONSE CURVES* SEPARATE BASS AND TREBLE* BALANCE AND FADER CONTROLS* DUAL (FRONT AND REAR) RCA OUTPUTS* LOUDNESS* STEREO/MONO AND LOCAL/DISTANCE SWITCHES* ID-3 TAG COMPATIBLE* PCB WITH CONFORMAL COATING* FRONT PANEL UV COATING* OUTPUT POWER – 60W X 4 CHANNELS6.5 2-Way Marine SpeakerPOWER HANDLING, PEAK 200WMAGNET STRUCTURE 40 OzIMPEDANCE 4 OHMFREQUENCY RESPONSE 80HZ-20KHZSPL 1 WATT/1 METER 90dBCONE MATERIAL POLY INJECTIONVOICE COIL 1 ALUMINUMTWEETER 1 MYLAR DOMEGRILLES PLASTIC |
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Boundary-Scan Test $40 This new book will act an introduction to as well as a practical guide to Boundary-Scan testing. The ever increasing miniaturization of digital electronic components is hampering the conventional testing of Printed Circuit Boards (PCBs) by means of bed-of-nails fixtures. Basically this is caused by the very high scale of integration of ICs, through which packages with hundreds of pins at very small pitches of down to a fraction of a millimeter, have become available. As a consequence, the trace distances between the copper tracks on a printed circuit board came down to the same value. Not only have the required small physical dimensions of the test nails made conventional testing unfeasible, the complexity to provide test signals for many hundreds of test nails has grown beyond manageable limits. A new board test methodology has to be invented. Following the evolution in the IC test technology, Boundary-Scan testing has become the new approach to PCB testing. By taking precautions in the design of the IC (design for testability), testing on a PCB level could be simplified to a great extent. This condition has been essential for the success of the introduction of a Boundary-Scan Test (BST) at board level. Since Boundary-Scan testing involves the whole PCB life cycle, it is more than just the introduction of a new design technology. It is an integral production approach which will aid top management in their goal of a successful global strategy for their business. This book will aid a company to introduce the Boundary-Scan Test. IC design and test engineers alike will find the book an important introduction and guide to using the Boundary-Scan Test in their work. Engineering managers can also use this book to gain an insight to the impact that the Boundary-Scan Test will make on their organisation. |
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Boundary-Scan Test: A Practical Approach $249 This new book will act an introduction to as well as a practical guide to Boundary-Scan testing. The ever increasing miniaturization of digital electronic components is hampering the conventional testing of Printed Circuit Boards (PCBs) by means of bed-of-nails fixtures. Basically this is caused by the very high scale of integration of ICs, through which packages with hundreds of pins at very small pitches of down to a fraction of a millimeter, have become available. As a consequence, the trace distances between the copper tracks on a printed circuit board came down to the same value. Not only have the required small physical dimensions of the test nails made conventional testing unfeasible, the complexity to provide test signals for many hundreds of test nails has grown beyond manageable limits. A new board test methodology has to be invented. Following the evolution in the IC test technology, Boundary-Scan testing has become the new approach to PCB testing. By taking precautions in the design of the IC (design for testability), testing on a PCB level could be simplified to a great extent. This condition has been essential for the success of the introduction of a Boundary-Scan Test (BST) at board level. Since Boundary-Scan testing involves the whole PCB life cycle, it is more than just the introduction of a new design technology. It is an integral production approach which will aid top management in their goal of a successful global strategy for their business. This book will aid a company to introduce the Boundary-Scan Test. IC design and test engineers alike will find the book an important introduction and guide to using the Boundary-Scan Test in their work. Engineering managers canalso use this book to gain an insight to the impact that the Boundary-Scan Test will make on their organisation. |
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Cables To Go HDMI Digital Pass-Through Faceplate – HDMI – White $49.99 Impact Acoustics proudly introduces our new Digital Series Pass-Through Wall Plate. This Decora compatible wall plate dresses up any home theater, conference room or classroom and provide the final finishing touch to your A/V installation. Engineered from the ground up, this wall plate was designed for ease of installation and to provide the best signal transfer possible. Unlike traditional pass-through wall plate, the Impact Acoustics Digital Series Wall Plate is constructed using four-layer computer grade printed circuit boards. The PCB traces are engineered to maintain the critical impedance necessary to transfer the delicate digital signal. Use this wall plate for HDMI and DVI installations, or use it to convert an HDMI connection to a DVI connection, or vice versa. |
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Characterization of FR-4 printed circuit board laminates before and after exposure to lead-free soldering conditions. $49.99 The transition to lead-free soldering of printed circuit boards (PCBs) using solder alloys such as Sn/Ag/Cu has resulted in higher temperature exposures during assembly compared with traditional eutectic Sn/Pb solders. The knowledge of possible variations in the PCB laminate material properties due to the soldering conditions is an essential input in the selection of appropriate laminates.;An experimental study was conducted to investigate the effects of lead-free processing on key thermomechanical, physical, and chemical properties of a range of FR-4 PCB laminate materials. The laminate material properties were measured as per the IPC/UL test methods before and after subjecting to multiple lead-free soldering cycles.;The effect of lead-free soldering conditions was observed in some of the material types and the variations in properties were related to the material constituents. Fourier transform infrared (FTIR) spectroscopy and combinatorial property analysis were performed to investigate the material-level transformations due to soldering exposures. |
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Characterization of FR-4 printed circuit board laminates before and after exposure to lead-free soldering conditions. $49.99 The transition to lead-free soldering of printed circuit boards (PCBs) using solder alloys such as Sn/Ag/Cu has resulted in higher temperature exposures during assembly compared with traditional eutectic Sn/Pb solders. The knowledge of possible variations in the PCB laminate material properties due to the soldering conditions is an essential input in the selection of appropriate laminates.;An experimental study was conducted to investigate the effects of lead-free processing on key thermomechanical, physical, and chemical properties of a range of FR-4 PCB laminate materials. The laminate material properties were measured as per the IPC/UL test methods before and after subjecting to multiple lead-free soldering cycles.;The effect of lead-free soldering conditions was observed in some of the material types and the variations in properties were related to the material constituents. Fourier transform infrared (FTIR) spectroscopy and combinatorial property analysis were performed to investigate the material-level transformations due to soldering exposures. |
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Complete Digital Design $71.75 YOUR ONE-STOP RESOURCE FOR DIGITAL SYSTEM DESIGN! The explosion in communications and embedded computing technologies has brought with it a host of new skill requirements for electrical and electronics engineers, students, and hobbyists. With engineers expected to have such diverse expertise, they need comprehensive, easy-to-understand guidance on the fundamentals of digital design. Enter McGraw-Hill’s Complete Digital Design. Written by an experienced electrical engineer and networking hardware designer, this book helps you understand and navigate the interlocking components, architectures, and practices necessary to design and implement digital systems. It includes: * Real world implementation of microprocessor-based digital systems * Broad presentation of supporting analog circuit principles * Building complete systems with basic design elements and the latest technologies Complete Digital Design will teach you how to develop a customized set of requirements for any design problem — and then research and evaluate available components and technologies to solve it. Perfect for the professional, the student, and the hobbyist alike, this is one volume you need handy at all times! What you’ll find inside: * Digital logic and timing analysis * Integrated circuits * Microprocessor and computer architecture * Memory technologies * Networking and serial communications * Finite state machine design * Programmable logic: CPLD and FPGA * Analog circuit basics * Diodes, transistors, and operational amplifiers * Analog-to-digital conversion * Voltage regulation * Signal integrity and PCB design * And more! |
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Degradation of polychloro biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) in sediment using pressurized ozonation cycles. $49.99 This research is aimed at developing an efficient technique to remediate persistent bio-accumulative toxics (PBTs) including PAH and PCB contaminated sediments. The new method for treatment of contaminated sediments is based on successive cycles of compression and decompression of ozone/air mixture into the sediment slurry, resulting in higher degradation efficiency. Sediment samples from various locations in the country including Passaic River, St. Louis River, Waukegan Harbor, and Wells National Estuarine Research Reserve were tested for the remediation of PAHs and PCBs present in the sediments. The treatment results using pressurized ozone were also compared to those using other proven chemical and physical techniques such as ultrasound and ozonation at ambient pressure. The results using the new remediation technique consistently showed better treatment performance as compared to existing treatment methods operating at ambient pressure. Around 98% of PAH in Passaic River sediment is degraded within 20 minutes using new treatment whereas 85% of PAH is removed with 2 hours of conventional treatment with continuous ozonation and ultrasound irradiation. The new remediation process also eliminates virtually all PCB (4.3 ppm) in Waukegan harbor sediment in 20 minutes. The sediment from St. Louis River containing a high load of PAHs (900 ppm) proves very difficult to treat with conventional methods but is significantly ameliorated using the new technique. The enhanced treatment efficiency is explained by a proposed mechanism of particle fracture resulting from gas solubility changes in the organic solvent/water as the slurry undergoes gas compression and decompression cycles. Contaminant flushing from soil pores, implosion and/or explosion of the soil particles during the pressure cycles has led to increased contaminant exposure and contact with ozone, thus resulting in heightened contaminant release and treatment. This work also tested the proposed hypothesis of |
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Degradation of polychloro biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) in sediment using pressurized ozonation cycles. $49.99 This research is aimed at developing an efficient technique to remediate persistent bio-accumulative toxics (PBTs) including PAH and PCB contaminated sediments. The new method for treatment of contaminated sediments is based on successive cycles of compression and decompression of ozone/air mixture into the sediment slurry, resulting in higher degradation efficiency. Sediment samples from various locations in the country including Passaic River, St. Louis River, Waukegan Harbor, and Wells National Estuarine Research Reserve were tested for the remediation of PAHs and PCBs present in the sediments. The treatment results using pressurized ozone were also compared to those using other proven chemical and physical techniques such as ultrasound and ozonation at ambient pressure. The results using the new remediation technique consistently showed better treatment performance as compared to existing treatment methods operating at ambient pressure. Around 98% of PAH in Passaic River sediment is degraded within 20 minutes using new treatment whereas 85% of PAH is removed with 2 hours of conventional treatment with continuous ozonation and ultrasound irradiation. The new remediation process also eliminates virtually all PCB (4.3 ppm) in Waukegan harbor sediment in 20 minutes. The sediment from St. Louis River containing a high load of PAHs (900 ppm) proves very difficult to treat with conventional methods but is significantly ameliorated using the new technique. The enhanced treatment efficiency is explained by a proposed mechanism of particle fracture resulting from gas solubility changes in the organic solvent/water as the slurry undergoes gas compression and decompression cycles. Contaminant flushing from soil pores, implosion and/or explosion of the soil particles during the pressure cycles has led to increased contaminant exposure and contact with ozone, thus resulting in heightened contaminant release and treatment. This work also tested the proposed hypothesis of |
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Determination of the degradation mechanism for polychlorinated biphenyl congeners using mechanically alloyed magnesium/palladium in methanol . $49.99 Polychlorinated biphenyls are a ubiquitous environmental contaminant that can be found today throughout the world in soils and sediments, lakes and rivers, and flora and fauna. PCBs have percolated throughout the food chain, so that almost every human being has a detectable amount of the contaminant within their blood stream. Existing remediation methods include incineration, dredging and landfilling, and microbial degradation, but all of these methods have drawbacks that limit their effectiveness as treatment options. Recently, the use of zero-valent metals as a means of reductive dechlorination has been explored. Using a combination of zerovalent magnesium and catalytic palladium, a successful bimetallic system capable of degrading PCBs has been created and optimized.;Determining the mechanism for the reductive dechlorination has proven to be an arduous task, but experimental evidence has suggested three possible radical-type mechanisms for the use Mg/Pd specifically in methanol (as compared to aqueous systems). These possible mechanisms differ in the type of hydrogen species that replaces the chlorine atom on the PCB. Thermodynamic information has also aided in narrowing down which of the suggested pathways is most likely. It appears likely that the hydrogen involved in the dechlorination has the form of a “hydride-like” radical, which is a form of electron-rich atomic hydrogen. According to the literature, Pd catalysts create this species within the first few subsurface layers of the palladium in the presence of molecular hydrogen. Further work will be necessary to confirm that the “hydride-like” radical is actually the species involved in the dechlorination. |
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Determination of the degradation mechanism for polychlorinated biphenyl congeners using mechanically alloyed magnesium/palladium in methanol . $49.99 Polychlorinated biphenyls are a ubiquitous environmental contaminant that can be found today throughout the world in soils and sediments, lakes and rivers, and flora and fauna. PCBs have percolated throughout the food chain, so that almost every human being has a detectable amount of the contaminant within their blood stream. Existing remediation methods include incineration, dredging and landfilling, and microbial degradation, but all of these methods have drawbacks that limit their effectiveness as treatment options. Recently, the use of zero-valent metals as a means of reductive dechlorination has been explored. Using a combination of zerovalent magnesium and catalytic palladium, a successful bimetallic system capable of degrading PCBs has been created and optimized.;Determining the mechanism for the reductive dechlorination has proven to be an arduous task, but experimental evidence has suggested three possible radical-type mechanisms for the use Mg/Pd specifically in methanol (as compared to aqueous systems). These possible mechanisms differ in the type of hydrogen species that replaces the chlorine atom on the PCB. Thermodynamic information has also aided in narrowing down which of the suggested pathways is most likely. It appears likely that the hydrogen involved in the dechlorination has the form of a “hydride-like” radical, which is a form of electron-rich atomic hydrogen. According to the literature, Pd catalysts create this species within the first few subsurface layers of the palladium in the presence of molecular hydrogen. Further work will be necessary to confirm that the “hydride-like” radical is actually the species involved in the dechlorination. |
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Digital Electronics Guidebook: With Projects! $4.73 Used – A practical guide that explains how TTL (Transistor to Transistor Logic) circuits are designed and interfaced to “real world” circuits. Includes over 20 projects to teach digital circuits design, including a design for a simple 8-bit computer system .Complete with a reusable PCB (Printed Circuit Board) that can be used for all the projects in the book. |
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Digital Systems Design with FPGAs and CPLDs $86.95 If you are just starting in the field of digital system design with programmable logic, this book is all you will need!Programmable logic has made it possible to create digital systems that are malleable allowing for updates, changes, and enhancements on the same chip making digital systems cost effective and quickly available. This book focuses on two types of this logic: field programmable gate arrays (FPGAs) and complex programmable logic devices (CPLDs). Critical insight is provided via detailed discussions, worked examples, and case studies of circuit design principles and common design decisions. VHDL (VHSIC Hardware Description Language) is introduced and used throughout the book as it is one of the primary languages used in programmable logic.Design Fundamentals and Concepts Include•The Basics: Flow Charts, Block Diagrams, Formal Verification, Design Specifications•Printed Circuit Boards (PCB): Design, Testing, and Environmental Issues•Software and Hardware Programming Languages•Digital Logic Design Principles with VHDL•Digital Signal Processing•Interfacing Analog and Digital: DAC and ADC•Systems Level Design Including 2 Cases StudiesFind extra content including source code and updates at the companion Web site for this book at: http://books.elsevier.com/companions/9780750683975 |
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Effect of polychlorinated biphenyls and mercury on the common snapping turtle (Chelydra serpentina serpentina). $49.99 Snapping turtles are a good bioindicator of aquatic contaminants. Two contaminants of concern in aquatic environments are polychlorinated biphenyls (PCBs) and mercury. Snapping turtles are capable of surviving high levels of PCBs in their tissues. Females pass contaminants to their eggs, thereby exposing embryos prior to development. The effects of PCBs through maternal exposure on the developing embryo and neonate hatchling are poorly understood. My study addressed techniques to mimic maternal exposure, the change in PCBs from egg to hatchling, and the effects of PCBs on neonate hatchling respirations. My study also addressed estimating mercury levels in snapping turtles through a non-invasive technique. Snapping turtle eggs were collected, injected with oil or a low (1 ppm) or high (10 ppm) PCB solution, and incubated under low and high temperature and moisture treatments. Upon hatch, neonate hatchlings were measured in a respirometer for CO2 production. In adult snapping turtles, the claw, liver, muscle, and adipose tissues were sampled and analyzed for mercury concentration. Hatching success in PCB injected eggs was 61% overall. A comparison of congener specific profiles from egg to hatchling indicated an increase in higher chlorinated congeners and a decrease in lower chlorinated congeners. The interaction of high PCB treatment and high incubation temperature resulted in a lower total PCB concentration in the hatchling. Data did not support the relationship of PCB treatment and CO2. In modeling mercury contaminants in internal tissues, the claw alone was not a good indicator. The model to estimate mercury in the liver required the mercury in the claw and the weight of the turtle. Future contaminant studies should continue attempts with egg injection techniques to mimic maternal transfer. Understanding the toxicokinetics of PCBs during embryonic development is still in its infancy. My study revealed that PCBs are mobile and dynamic during embryonic development. |