Updated initial post with new bill of materials details to build a complete system easily.
e.oelberg said:did anybody ever built a battery powered preamp with this ?
Rochey said:I'm also looking at a 5V USB power-bank to bipolar power supply to do these things too.
Rochey said:It’s typically easier to find large value caps in polarized form. I like 47uF - it’s a nice mix of size and capacitance. Make sure they are at least ~65V caps.
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