My New Year gift to TW: A new theremin circuit

Posted: 9/4/2020 12:09:58 AM

Joined: 8/30/2020

What I had in mind was getting a Rigol MSO5000 that I saw in an EEVBlog video ( — really good channel BTW, recommend for anyone interested in electronics), but the Hantek recommended by Thierry is very interesting too.

I found the problem with the circuit. Turns out the problem was noise injected by the power supply of the theremin circuit, I changed it to a classic transformer and rectifier PS and the noise was gone (trial and error, changing all the components, a lot of trouble for such a simple problem.). Anyway, thanks for the help and the scope suggestions.

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