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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