Latest threads in Electronics Designshow only best voted threads
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Russia Beats U.S. at Their Own Game
...with help from all the U.S. disaffected citizens and faux refugee immigrants from eastern Europe no doubt.
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9 years ago
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Design gets Eco Award
BUT THERE IS A PROBLEM, IT WON'T WORK. I found this on Neon John's website. Mikek
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9 years ago
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Video DC Restorer
Just did a video DC restorer function (in CMOS) for a UTC camera chip, and realized that it would be trivial to do the same function with bipolar discrete devices. On the S.E.D/Schematics page of my...
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9 years ago
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Large Noise from Bridge Rectifier; Conducted Emission Measurement
Hi I am working on a high power frequency inverter (>1kW) and have a "funny" looking emission graph The converter is the typical inverter type, EMC filter->3 Phase Rectifier->DC Inductor->DC Link...
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9 years ago
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Coax as waveguide
Is there any possibility of using coaxial cable as a microwave waveguide? That is, not using the inner conductor, which is grounded at both ends (as is the outer), but somehow guiding an appropriately...
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9 years ago
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Challenging Construction Techniques - Several examples
Several solutions and one open question: 1. Drilling holes in glass. I build a "dam" around the hole site and fill with water. Then use a diamond particle "drill" in a Dremel or even an electric...
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9 years ago
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Semi-OT: Very thin insulation coating
Folks, We need to coat a very thin stainless steel wire of about 0.004" OD with insulating yet still flexible material of 0.002" thickness. Meaning the ultimate OD with insulation would be about...
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9 years ago
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Modem lightning protection
Having been born and raised in a large city, I would not even consider living in a city again. I like the farm life and that's where I live now. But the rural life has it's problems, beyond getting...
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9 years ago
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Nasty Math Problem of the Day...
Nasty Math Problem of the Day... Any ideas? ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | San Tan Valley, AZ...
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9 years ago
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Severe Weather Across U.S. Destroying Major Engineered Infrastructure Designed to Withstand 500-Year Events x2
What more proof does an idiot need. Does an idiot not know that all major c ivil engineering projects are designed to specifications derived from NWS w eather data (among other variabes obviously)?...
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9 years ago
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Dynamometers
A client just asked me if I knew of any testing house that had a dynamometer suitable for testing their stuff. We're looking at something that can accurately measure torques from 0 to about 100 N-m,...
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9 years ago
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Some MOSFET Questions
Hi, I am developing two circuits - a H-bridge inverter and a boost converter, both of which use a MOSFET(s) with a PWM drive and resistive load. I observe: a. The rise time measured across the drain...
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9 years ago
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Fudging Data For Customers
Has anyone here ever been asked to fudge test data for a customer, then quietly change it back later? We kind of expect product specs to be overblown a bit any more. It's nice when manufacturers...
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9 years ago
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Legal Niceties
See Andy G8OZD
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9 years ago
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Replace a Tweeter
I bought a pair of used Fisher STV-667 speakers. These are cabinets with a Woofer, Midrange and Tweeter, and has a built in crossover. The woofers sound good, and the mids are fine, but one of them...
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9 years ago
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