Re: Carlsbro 2 Knob Fuzz

Posted by kelnz on
URL: http://guitar-fx-layouts.238.s1.nabble.com/Carlsbro-2-Knob-Fuzz-tp29840p46888.html

Late to the conversation ....
I just built this with some low gain Matsushita 2SA102BA germaniums. Super happy with the result, it works ridiculous well with my set up.
For what it’s worth I took the following measurements
Q1; 42hfe, 100uA leakage, collector voltage -1.03V
Q2; 44hfe, 100uA leakage, collector voltage -4.24V
Q3; 44hfe, 40uA leakage, collector voltage -1.017V
Battery measurement 9.2Vdc
As I have mentioned the 2SA102’s; If buying off ebay confirm the complete part number. I bought 10 x 2SA102 that turned out to be 2SA102AA's with an average gain in the teens i.e hfe 13 to 24! You want 2SA102BA’s as this is the correct gain sub class for this effect.