Pb de son sur un clone de Fuzz Face DIY

Citation : I've also done some experimentation with germanium devices other than the AC128 and NKT275. I found a number of germanium types, measured their gains, and then listened to them. The results are pretty consistent - get the right gain and frequency response and the numbers printed on the cases don't matter. I like the 2N527 from GE (very consistent!) and the 2N508, also GE. The 508 is a little hotter, for more of a metal tone. Reports of results on the ECG158 are mixed. Some people are very happy with it, some not. I suspect that this can be put down to the variablility of the devices. Measure what you get!!

Citation : As other people have commented, the circuit drifts terribly with temperature, so I replaced Q1's 33 KW collector resistor with a 10 KW potentiometer in series with a 18 KW resistor. The potentiometer adjusts the bias of the circuit and varies the output DC voltage. The series resistor controls the range of the bias and is dependant on the devices used. This is all very good, but you need to see at what level you are setting the DC voltage at.

Citation : Salut, les AC128 de chez Banzai n'ont pas de point rouge. Ils ont par contre un ergot en métal qui, selon un de mes livres, indiquerait bien l'emetteur.. Affaire à suivre ?