I made this purely for my own use; it’s by no means complete, but I thought that folks here might benefit.
I use it to help figure out other people’s designs.
I use it to help figure out other people’s designs.
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Yesss awesome Very much what i was looking for
see there it seems it really does amplify the line it receive with his supply .
i often heard that a relay or a transistor amplify a signal in fact they just let pass a complete other line than the control one. Op amps is doing different very interesting thx for the drawings with formulas 
Transistors can be used as amplifiers, as well as using them as switches.
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Ok I will get on the theory of that right away i didnt know that thanks
I saw a Op amp configuration ruler on a wish AD. But couldn’t find a good one for sale. So I have been working on a Basic Op amp configuration PCB Ruler.
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How would i go about using one to make an audio amplifier to bring things up to synthesizer level?
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Maybe the last/right part of this schem can help you.
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