Latest threads in Electronics Designshow only best voted threads
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RF power question
We have an acquaintance who wants to put a roughly 1 KV (2K p-p) sine wave into a roughly 12 pF load near 500 MHz. He wanted us to modify our Pockels Cell driver, but that makes kilovolt or so...
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4 years ago
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78 | |
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gEDA PCB footprints for potted transformers.
I looked at that gedafootprints site but they only had one(1) transformer of the wrong size. So here's my .inc file for those. Beware. dimensions were hand transcribed from a pdf. # single output...
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4 years ago
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OT: Providing Hope Va
Anyone ever entered one of these raffles? They get promoted on my Facebook a lot: There seems to be some question as to this organization's legitimacy:
10
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4 years ago
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10 | |
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Though most of you won't care
My dad passed away early this morning, so I will be taking a break for Usenet and other online groups for the time being. My email address is good, if someone needs something from me. Goodbye.
33
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4 years ago
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Geophones
Is there any advantage to wiring two geophones in series? Is their sensitivity limited by spring and mass so you gain nothing, assuming you have enough gain. They were on sale at $9.95, just went up...
18
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4 years ago
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18 | |
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OT Puzzle if you have time
1+2=21 2+3=36 3+4=43 4+5 =?
25
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4 years ago
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25 | |
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clee phone AVC
Relative to some recent political reporting, a person was claimed to shout into a cell phone so loud that the other person had to take it away from his ear, and then other people in the restaurant...
107
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4 years ago
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107 | |
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Is an STM32F437VGT7 an exact plug-compatible superset of STM32F417VGT6?
Sorry to ask this rather obscure Q but ST "engineering" is not really contactable via any normal means... It looks like a superset in every way, comparing the data sheets. They even made the 2MB of...
12
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4 years ago
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12 | |
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Could I have a little order with that chaos?
pride ouselves on how orderly it is... Definitely mind blowing.
3
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4 years ago
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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...
10
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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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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....
17
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4 years ago
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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...
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4 years ago
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