Latest threads in Electronics Designshow only best voted threads

Subject Author Posted Replies
 
Re: OT: Brushless cordless drill less powerful or less efficient in reverse?
If it's got helical cut gears that's a possibility.
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Look at what was in my bedroom !
Google-assisted-translation: Two dark videos: Part 1: Part 2: Sharpest Picture: Squirrel Butterfly / Squirrel Last night I was shocked when I tried to close the window, suddenly there w as that big...
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Film capacitor as power-supply filter
Is there any reason not to use a 20-uF 900-volt film capacitor as a power supply filter? I'm updating a vintage Heathkit capacitor checker that I use regularly for re-forming electrolytics, and its...
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OT: disturbing headlines from Slashdot
Latest Slashdot disturbing headlines from major sources: arstechnica, zdnet, nytimes, infoworld ... Big ISPs Worry DNS-Over-HTTPS Could Stop Monitoring and Modifying of DNS Queries Russian Malware...
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OT: Move to Illinois!
Be a contrarian! -- This message may be freely reproduced without limit or charge only via the Usenet protocol. Reproduction in whole or part through other protocols, whether for profit or not, is...
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Likely impedence of this scenario?
Gentlemen, Can someone guestimate the likely z between the horizontal deflection plates of a CRO? The maximum PD between them from the sawtooth gen board is approx 130V according to the schematic. Can...
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Flash website - end of an era
Over 10 years ago I started a website ( which I b uilt interactive flash programs to teach various engineering concepts. I In itially designed these programs to personally understand DSP and then to...
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Zero-drift amplifiers with negative PSRR
Just a little heads-up: I'm working on someone's design that has LPV821's. It's a nano-power zero-drift amp with incredible offset specs, being used as a unity-gain d.c. buffer. The amp's input is...
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Dot Matrix Printer - WTB
Can someone recommend a (sub-$900) new, current production model dot matrix printer? I plan to use it on Windows-7, USB. My strong preference is for a wide carriage, but I could probably live with 80...
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Stereo mixer amplifier
Greetings, An article about my stereo mixer-amplifier project is now available. Thank you, 73, -- Don Kuenz KB7RPU There was a young lady named Bright Whose speed was far faster than light; She set...
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AoE x-Chapters 9x.23, sending power on a beam of light
AoE x-Chapters, section 9x.23, power on a light beam. For my electrospinning project (recall 15kV+4kV=19kV, now 30kV), we need to power an LED voltmeter module, to measure the nano-thread production...
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The three worst diagrams EE students are presented with
Diagram 1. The field coming out of a charged particle. So there are 16 arr ows coming out of a dot on the center of the page ( or 8 or 24 depending on the book). This is what an electric field looks...
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Power supply design - does anyone know the transfer function?
I have been designing (using)various Linear tech power supply chips. It se ems current mode is the way to go. You can use their simulation tools. It seems that the whole control of the whole power...
 
Ramblings about feedback control loops
In school I took the usual control classes. Nyquist , Bode, RHP etc. Pret ty much did not understand any of it at the time. I just remember one grap h that seems to get drilled into my brain. The ole...
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using the TDC1000 ultrasound IC
Has anybody used the TDC1000 ultrasound ranging IC, with PGA, etc.? I'm not interested in measuring a specific reflective distance, such as water level, but rather a reflection intensity vs. distance.