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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.

  • 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.

preamp

  1. Q

    Input requested for DIY Mixer-Preamp

    Hello - I'm working on an updated version of my mixer-preamp-amp and want input/comments on the mixer-preamp stage. For background, the application is audio input from two computers plus a 3rd aux input, and output to a couple of 6 ohm monitors. This device allows variable mixing of the three...
  2. B

    odd signals from transimpendance amplifier

    I am building a setup to be able to read the reflected light from a laser beam with a photodiode, which I have never done before. so I bought this photodiode and this transimpendance amplifier. But after wiring it up, I didnt get any useful readings from the TIA. So I I reduced the voltage from...
  3. J

    Solar Guitar™ prototype

    Hello, I am building Solar Guitar™ prototype, an eco-friendly, self-sustained musical instrument solely powered by the Sun. 10-15 watt, 2 speaker guitar amplifier with preamp/reverb/chorus/delay/overdrive will be installed into the guitar’s body. Looking for a creative specialist to build this...

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