Latest threads in Electronics Designshow only best voted threads
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Tektronix 2% Ag Solder
Why ? I know it is for their proprietary (probably) ceramic connector strip s. They indicate you can get by with regular solder once or twice but too m uch and it breaks the bond. So does that mean...
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4 years ago
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relay test
This seems pretty fast for a DPDT 8 amp 250 VAC relay. I think this is public. Dropbox makes a positive effort to be confusing.
4
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4 years ago
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Huge savnings for all, collaborative ASIC
Just a good idea, my humble opinion: ASIC is expensive, and the chip companies earn good profits on selling commodity chips Commodity chips: opamps, regulators, diodes, transceivers etc If we go...
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4 years ago
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Hamamatsu thermopiles
So on this science listserve, I said that Hamamatsu makes cheap thermopiles, like these, Reading the fine print these all come with 3-5 um AR coating or even narrower BP at 4.5 um. They plot the...
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4 years ago
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I thought I was smart enough
I'm try to help the guy with the LDR triggering a 555. I'm slowly walking him through it and now just triggering it with a wire momentarily to grd, to pull Pin 2 low, through a capacitor. But it won't...
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4 years ago
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Question regarding class F amplifier efficiency
Could some electronics guru here please provide some hints. I am SPICE simulating a class F amplifier with 3, 5 and 7 harmonic tuning and an operating frequency of 500 MHz. I am using VFR92A as the...
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4 years ago
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250A electronic load
Folks who have been paying attention know that I've nailed the EE-lab techniques of designing high-amperage current sources. My associate, Rob Legg, has extended measurements above 1kA. Now I'm...
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4 years ago
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2 GHz buffer with 2N390x
-- John Larkin Highland Technology, Inc The cork popped merrily, and Lord Peter rose to his feet. "Bunter", he said, "I give you a toast. The triumph of Instinct over Reason"
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4 years ago
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Lets go back to POTs
Damned kids and their POTs. I want to go back to dial phones and make and break calling. No number tones. Yeah, that'll put folks back to work. Build more of these...
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4 years ago
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pHEMT model tweaked for 1/f noise
Hi, all, In one post on the 'purpose of precision' thread, I noted that the ATF38143 model I posted awhile back predicted way, way too much low frequency noise. The real pHEMTs tend to have a pretty...
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4 years ago
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OT dynamite
Nice new plaque: -- John Larkin Highland Technology, Inc The cork popped merrily, and Lord Peter rose to his feet. "Bunter", he said, "I give you a toast. The triumph of Instinct over Reason"
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4 years ago
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OT: Chinese Authoritarianism
Man who tries to know everything ends up knowing nothing: "In many ways, his hand was forced by his own system. Under the conditions of massive surveillance and censorship that have grown under Xi,...
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4 years ago
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pcb signal integrity check
This is the control board of my alternator simulator. I think we are getting close to receiving a purchase order! It has high power, relay drivers, uP, FPGA, dram, ethernet, USB. It goes close to the...
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4 years ago
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Ping Jeroen
Looks like you were right, mate. Your shortcut for dbm appears to work! :-D
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4 years ago
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Shunt Reference Problems 2
A few days ago I posted Shunt Reference Problems re. issues I was having with ADR530 shunt regulators. Thanks for many suggestions, prize to Phil Hobbs who pointed out two issues: 1) most (maybe all)...
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4 years ago
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