Author Topic: Gemini III dual fuzz dissected  (Read 38003 times)

chuckd666

Re: Gemini III dual fuzz dissected
« Reply #100 on: September 21, 2015, 08:12:36 AM »
I have a couple MP20Bs for Q1 and Q2, and a Sanyo 2SD187 for the NPN Germ. The Hfe for the NPN is a little lower than I assume it should be. It was around 60-70 I believe.

digi2t

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Re: Gemini III dual fuzz dissected
« Reply #101 on: September 21, 2015, 11:13:20 AM »
Yeah, if you use what I prescribed on the vero for Q3 gain (100 - 115 hfe), that should bring your voltages into line. You should be able to get pretty close to the original voltages all around.
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chuckd666

Re: Gemini III dual fuzz dissected
« Reply #102 on: September 21, 2015, 08:51:03 PM »
Yeah I figured that must be the culprit. It sounds good at the moment, but might just have to get a bunch of NPNs somehow. Thanks again for the help. A/B'd with my real one it sounds pretty on par.