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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by psevdonim

  1. P

    Inverting OP-AMP - how does it work ?

    I can't quite agree with the function of C2, because it's 5600pF, so it has little effect to audio range, and it's connected more to the speaker rather than to output transistors. This schematics is about 25 years old. Does anyone know, who the original constructor is and where was it...
  2. P

    Inverting OP-AMP - how does it work ?

    thanks. So the calculation of gain is as usual ? R10/R1 ?
  3. P

    Inverting OP-AMP - how does it work ?

    how does the 741 in this schematics https://www.electronics-lab.com/projects/audio/041/index.html work ? If R10 would go to pin 6 of 741, I'd understand it. But here the C2 interrupts the connection.

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