Latest threads in Electronics Designshow only best voted threads
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fast analog mux
This is a Fairchild FSA3157 analog mux. It's impressive, with switch rise/fall times below 500 ps, if you ignore the fine points. But it's too ugly for the application that I had in mind. And around 5...
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9 years ago
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lots of files
I have roughly 70,000 files on my C: drive. It would be a hopeless task to go through them and delete the useless ones, saving some few kilobytes or megabytes per file. So things will just grow, and...
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9 years ago
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OT: Last know good Thunderbird version that won't white-screen on Win-7?
Folks, By now I know that I am by far not the only one. Thunderbird white-screens a lot where it sits there totally unresponsive. A real productivity killer. Happens only in Windows 7, not in XP. It...
62
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9 years ago
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62 | |
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RE DIAC/TRIAC Light Dimmers
What do you think of impressing a DC voltage to the trigger circuit to make a low frequency amplifier ? I think such a thing could be used for a servo on a DC motor. Or is this one of those things...
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9 years ago
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OT soil bacteria
This is neat. If you click on the nature link you can see the paper. (Nature is giving open access.) George H.
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9 years ago
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Fuses, 2 in series to comply with needed voltage rating
Hi In an application, we are using a 500Vac fuse (30A) For some strange reason I want to use 2 250Vac fuses in series Anyone know if this will work? When a overcurrent situation arises, a fuse will...
61
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9 years ago
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61 | |
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LIRR
Hi, LIRR contacted me to appear for the pre scan test for the position of Electrical Engineer. Does anyone know about the format of the test and how should I prepare for it? Thanks erica
6
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9 years ago
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Amplifier, adc driver
Hello, I'm looking for a schematic of the amplifier with band from DC to 100 MHz and impedance 1Mohm for 14bit ADC converter. I googled only simple solutions based on eg AD8138 with trafos and imput...
7
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9 years ago
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7 | |
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Why is ungrounded power supply ground at line ground?
I'm using a switching regulated power supply on a Beaglebone Black and regardless of whether I plug it into ungrounded 120V or 240V, the ground on the processor is at 0V (or very close) to power line...
21
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9 years ago
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21 | |
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My Geomagnetic Amplifier Circuit
This is a high gain instrumentation amplifier, based upon the Analog Devices AMP01, I designed to detect low intensity ELF's in real time and amplify them to drive a small calibration coil. The signal...
34
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9 years ago
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Question regarding diac-triac lamp dimmers
Could some electronics guru please hekp ? Maybe this is a stupid question, but here we go. Simple AC kine based lamp dimmers use a diac triac pair with a capacitor that gets charged via a resistor...
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9 years ago
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OT: Printing from Windows 7 via SMC Barricade router?
Folks, Did everything in the book. Configured it via a TCP/IP port because the SMC software will not run on Windows 7 Professional 64-bit. This direct method generally works also on machines with...
126
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9 years ago
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126 | |
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Op-Amp Help
Hi I would like to amplify a variable input voltage to a regulated 5 volt. Th e variable input voltage comes from the pulse coil my bike which is 50mv at low rpms and increases upto 30 volts at high...
18
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9 years ago
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Tek TDS380
Hi, A friend/colleague has 6 TDS380's to EoL. Is it worth his trouble to list them on eBay (individually)? Or, just take the tax writeoff for a charitable donation?
7
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9 years ago
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GPIO - raspberry PI
Hi to all. Am looking for some ultra simple, ready made script for this task: - start the script on boot - set high on some 3V GPIO - wait for 2 seconds - set low and exit the program This is used for...
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9 years ago
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