Latest threads in Electronics Designshow only best voted threads
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placing a board
I'm doing the placement on this one. I have the circuit in my head, and I know about the many electrical constraints, so it's easier to do the critical stuff myself, instead of trying to explain it...
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4 years ago
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10 | |
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Degradation at 185 c?
Anyone have experience with Megtron 6, Isola Getech, Isola 370HR? How long do they take to turn light brown? Dark brown? Become electrically unusable? Carbonize? How about above degradation at 200C?...
6
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4 years ago
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6 | |
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OT: solar superfalres
Actually, this may not be all that off-topic. The Carrington solar flare in 1859 messed up a lot of the electronics around at the time, and it wasn't really big enough to qualify as a super-flare....
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4 years ago
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17 | |
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best online weed dispensary
hello guys welcome to the best weed dispensary in california USA we have the best prices and the best starter supplies and we supply the best cannabis and indica strains available for purchase. our...
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4 years ago
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Ethernet RJ45 jack - what do the transformer centre taps do?
This is a common type of jack with integrated magnetics It connects the txf centre taps via 75R resistors to a 1000pf cap which then (pin 8) goes to the circuit ground. What does this do? There are...
6
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4 years ago
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Is cklass B amplifier BOTH linear and non-linear
Seeking the opinions of gurus on this newsgroup. The bare bones class B amplifier has zero base|gate bias. A class F amplifier is an extension of the class B with harmonic tuning. So, is class B...
5
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4 years ago
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5 | |
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Information Unlimited dealings?
Anyone here have difficulty dealing with this firm? I ordered parts from them to build a kit, but the remainder of the parts needed are outdated. I contacted them, but they take forever to respond and...
7
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4 years ago
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enormous drum core
It's rated for 3.6 amps. At 5 amps, it tends to attract nearby alligator clips. Well, not so nearby. In other news, we machined a shaft for our loaner aircraft alternator, and we're spinning it and...
10
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4 years ago
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10 | |
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Weird LLC current limiter
I have just found this pretty bizarre idea: It uses a transformer to limit the voltage swing at the resonant capacitor. Great, but why wouldn't they use a bidirectional TVS for the same purpose? That...
3
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4 years ago
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Electros in Series II
Hi, just came across a Chinese made powered mixer with Class D amps and SMPS. Branded Fender model "Passport 150 Pro". The 4AT 20mm AC fuse was blown and a replacement blew spectacularly at about...
28
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4 years ago
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28 | |
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anyone tried these HV power supplies?
Seem like they might be pretty robust for various applications, just wondering if anyone has tried one? There are other venders with them on eBay at even cheaper prices.
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4 years ago
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what is this high voltage display device called?
What I'm thinking of is not a plasma globe, although, like the globe, it too is intended primary for display. If I were to describe it, I remember it being made out of glass, maybe 1-2 feet in...
14
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4 years ago
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14 | |
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C0G AC derating
Hi, Polypropylene capacitors are no longer the only choice in the ~20nF/1kV+ range. Now there are C0G MLCCs as well. It makes me think whether they would work reliably as the LLC resonant capcitors,...
4
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4 years ago
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delta-sigma again
I'm still playing with delta-sigma A/D conversion in LT Spice. I'll be using the ADUM7703 isolated 2nd order converter, clocked at 20 MHz, and we're thinking now about decimation filters in an FPGA....
41
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4 years ago
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41 | |
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Handleiding plieger trekschakelaar ?!
Waar de fuck is de handleiding van deze trekschakelaar ?! Vrij complex ding: Kabels niet bevestigt aan muur toen ik hier kwam wonen, me not amuzed. Heb wel dit gevonden, een iets ander model, lijkt er...
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4 years ago
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