Latest threads in General Electronicsshow only best voted threads
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VOM max reading
I want to be able to measure the maximum voltage reading on a VOM over a given time interval, like a fever thermometer shows its maximum reading until it is "reset". Is there a cheap/easy way to do...
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9 years ago
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MIDI Expander Box
For those who use MIDI-capable musical instruments: I've got a nearly 25-year old MD 80 MIDI expander (thru) box that works fine but I've noticed that connecting the MIDI out from some devices to an...
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9 years ago
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Bitcoin could be "experiment in artificial intelligence"
Hi all. I still say that Bitcoin (BTc) is actually a classified experiment into AI using all those parallel processors as a primitive-but-effective neural net. The inventor has stayed silent since...
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9 years ago
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Schematic wanted: Crest ultrasonic cleaner
Crest model 4G-250-3, early 90's vintage. Part numbers have been sanded off all ICs. It would be great to find a schematic... Thanks.
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9 years ago
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Forward converter is actually transformer isolated buck (step down) converter.
Forward converter is actually transformer isolated buck (step down) converter. Read more: Also, simulate forward converter online on
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9 years ago
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Scam or legitimate music site ?
This is way off topic for many, but I have a feeling that there are more than a few real musicians and even more aspiring musicians in this forum. I am searching the net for online music shops for a...
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9 years ago
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Re: Rubber dome switches
Xpost list trimmed. Followups set to . Googling "VE135700 switch" leads to the following thread or which suggests that at least in 2004, that part was available from also has the phone number for...
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10 years ago
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Op-Amp Sawtooth Generator
Op-Amp Sawtooth Generator is unavoidable part of PWM modulators and so part of analog control circuits. Now it can be simulated: Also read the theory of operation:
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10 years ago
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Connector source?
Cinch Jones Plug - available from Mouser, made by -- Peter Bennett, VE7CEI Vancouver BC peterbb (at) Vancouver Power Squadron:
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10 years ago
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Flyback converter
Even though some authors presents flyback converter as transformer isolated boost converter, it is more closer to reality that flyback dc-dc converter can be explained as transformer isolated...
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10 years ago
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Financing America - Mining Securities
We have during the last five years seen a mining development driven by dema nd. Now, the development is been achieved an overall optimum level. Now we have in the mining sector started to prepare us...
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10 years ago
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Solar garden light schematic.
On A.B.S.E I've posted the schematic of a solar Led garden light in the hope someone can name the type of oscillator. Thanks.
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10 years ago
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ST semi - CHN063AB.
Anyone know whether this is a thinly disguised MC34063? Its definitely a switcher of some sort. Thanks.
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10 years ago
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Boost DC-DC converter online simulation
Online simulation of Boost converter DC-DC converter is ready. Boost DC-DC converter has output voltage always higher then the input. This makes it particularly useful in battery systems as well as...
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10 years ago
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Fuse for motor protection?
A small 1/2 hp induction motor is turned on and off with a motor-rated toggle switch connected to a 208V 20A branch circuit. No other protection installed. Obviously not enough protection so I'm...
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10 years ago
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