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Guitar Amp gainclone based on LM1875, the "colonel sanders"

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Published on Apr 26, 2011

This is a guitar amp I made using 2 op-amps, the first a TL054IN, which takes the ~50 millivolt guitar signal (it's a woody on an acoustic) and outputs 2v to the LM1875 which drives a 5.25" speaker. The sound is great, but I'm using a small transformer which cannot offer the power required by the 1875. The voltage drops significantly (about 10-15 volts) when the guitar is struck loudly.

I named it the colonal sanders, as it's red and white (just like real life).

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