kmcguitars
GuitarArtologist
My Princeton now has adjustable Bias!:banana: As per Doug Hoffman's diagram on his site. I replaces the 27k set bias resistor with a 10k resistor and 50k trim pot. Also replaced the 100k bias resistor,IN4007 diode and 70uf Electrolytic cap with a 100uF 100v cap. All resistors are 2 watt metal film.
Sorry no pics yet... Camera is M.I.A.:smack:
Sorry no pics yet... Camera is M.I.A.:smack: