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I'm trying to create a very simple guitar amplifier design that lights up an LED when you strum the guitar and need some guidance on how to model the guitar's signal output i.e. the AC signal that goes into the amp. I've started with an AC voltage component with an amplitude of .1v, which is roughly what I measured coming directly out of the pickup. The simulation shows the current I'd expect, however, after testing the circuit in real life, there was no light :( My question is am I (roughly) modeling the guitar's output correctly? I have hunch that the issue might boil down to a lack of understanding of impedance, but I'm not sure. Any guidance would be great. Here's the current circuit I have: |
March 09, 2019 |
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try two things: 1. change c10 to small one (e.g. 1uf). 2. R16: use a 2k pot. adjust it during test. |
March 09, 2019 |
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