Latest threads in Electronics Designshow only best voted threads
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Grounding an aluminum enclosure to copper pads on a PCB
So we found a place to weld an aluminum wire to an aluminum enclosure (19mm diameter tube). Now we are trying to figure out an economical way to connect that wire to a PCB. The suggestion we have is...
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9 years ago
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Skunk Works' Compact Fusion Reactor Patents Issued
It was just announced that Lockheed-Martin Company had been granted patents on their new fusion reactor design. I saw an article on page B1 of the 14 November 2014 issue of The Wall Street Journal...
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9 years ago
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Measuring high resistance
Is there a simple way to do high resistance measurements (as per using a Megga) ? I need to do isolation tests and record results >20M.... most measurements with a mega are >>1G Accuracy is not a...
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9 years ago
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Released version 0.3 of my rtl_sdr based spectrum analyzer software for Linux:
Released version 0.3 of my rtl_sdr based spectrum analyzer software for Linux: xpsa requires a DVB-T USB stick, librtlsdr, libforms (xforms), fftw3, some other stuff. This one supports any mixers up...
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9 years ago
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Off topic sorta -- space heaters
-- And I ask you guys because this is my go to group. Even if it's electrical I can get a definitive answer here. Don't really know Jack S. about heater technology, all I know is a watt is a watt but...
14
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9 years ago
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BNC Connectors
For the outer (screen) on a mating pair of BNC's, what is supposed to be the mating surface? From the male perspective, is it the outer surface (circumference) of the tube - which always seems loose...
14
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9 years ago
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Proximity sensors
I need to detect the presence of an object at the front of my PCB with a maximum distance about 10-20cm. The behaviour would be similar to the proximity sensor found in modern touch-screen smartphones...
14
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9 years ago
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Running GPIB Interface
First after reading this can you recommend a more appropriate group? Forum? I have a program that was running on a Windows 98 computer, it died. The program controls an HP 3330B Automatic Synthesizer...
24
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9 years ago
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Back to back Jfets
A while ago Phil Hobbs mentioned a jfet with 'interchangeable' drain and source. I am wondering how much different that would be compared to if you got 2 jfets (call them Q1 and Q2) and connected Q1...
26
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9 years ago
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Film caps in vacuum environment
Anyone have any idea of the suitability or not of using X2 film caps in a vacuum environment [~0.6mBAR]? Can't seem to find anything on Epcos or Vishay datasheets. No replies to emails to their apps...
14
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9 years ago
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What is the mystery behind "white light led light from 1.5 Volt AA battery"
Could some electronics guru please shed some light on this ? Several Web sites(please check list below) have schematics and flashy color photographs of single white led light powered off a single 1.5...
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9 years ago
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You think we are here for a purpose? Yes... humiliation!
Open it with your net browser. This one is pretty complete. Most of them I find on the net have been edited. Some add "Your mom" at the end. I feel REALLY small. You should too.
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9 years ago
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OT: html Clean-up ??
I have some documentation written in html notation, and it's full of such stuff as... – ± − etc. It's a _huge_ document, so I'm wondering if there's some simple way to replace these html...
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9 years ago
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gate driver
I need a mosfet gate driver, to drive two n-fets in a half-bridge (totem pole) config, 5 volts nom in, with some sort of bootstrap for the upper fet gate. Switcher output will be around 2.5 volts at 5...
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9 years ago
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Reducing Copper Trance Resistances, ideas?
Hi We are running 25A in copper traces in a frequency inverter. I have reduced the power dissipation of the traces by increasing the copper thickness from 70u to 105u and increased the widht of the...
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9 years ago
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