another big presh to @bbspro for the music! - youtube.com/@bbspro121 watch part one - kzbin.info/www/bejne/fJyXkp5-ntWmjs0 a more accurate way to trace the in/output curcits would be to use the signal generator on the oscilloscope. put the same waveform on both channels, then compare them instead of trying to compare live music.