I may have missed something but your voltages weren't off at V2?
UPDATE: Finished my Express build last night > it's working!
Moderators: pompeiisneaks, Colossal
Re: UPDATE: Finished my Express build last night > new PT, no more fuses blowing, odd output
Great! You should be proud and happy. I can see it in the pics now that you pointed it out.
Re: UPDATE: Finished my Express build last night > new PT, no more fuses blowing, odd output
I'm not sure if it's worth mentioning here, but when I fired it up, it was pretty noisy (as expected from initial adhoc lead dress). I replaced the lead going from the volume wiper with a shielded cable, changed the 500pF mica cap with a .01 film cap, and the one 47pF mica cap in the phase inverter with a 470pF poly cap. I also put a 100k grid stopper on pin 7 of V1.
Greatly improved the noise floor and reduced microphonics. Will try to sneak out of work early today to crank the hell out of it.
Greatly improved the noise floor and reduced microphonics. Will try to sneak out of work early today to crank the hell out of it.
Re: UPDATE: Finished my Express build last night > it's working!
If anyone is interested, I recorded a demo the other day with my completed Express build. Rhythm guitar side (left) are a Bogner Ecstasy Classic and the lead side (right) is the Express.
https://on.soundcloud.com/JwiA8p9LH2ATtfT49
Also, here’s a photo of the amp:
https://on.soundcloud.com/JwiA8p9LH2ATtfT49
Also, here’s a photo of the amp:
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Re: UPDATE: Finished my Express build last night > it's working!
I love it! It fits and sits perfectly! It sounds a bit more refined than a lot of Express amps.
Signatures have a 255 character limit that I could abuse, but I am not Cecil B. DeMille.
Re: UPDATE: Finished my Express build last night > it's working!
That's really great. I love it all!
Re: UPDATE: Finished my Express build last night > it's working!
That is a cool lookin' little head. And it sounds great too!
Mike
Mike