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Which diodes for Big Muff Pi?

5/19/2004 10:19 AM
Humbucker Which diodes for Big Muff Pi?
On two different schematics that I've seen on the Big Muff pi it shows that the diodes are 1N4148 or 1N926, neither of these diodes are offered on Small Bear's website. Are there other diodes that would do the job?
5/19/2004 3:31 PM
mark hammer

1N4148's will do just fine as will 1N914's.
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5/19/2004 7:12 PM
1N914s will do just fine? Super!  
Thanks Mark!  
BTW Mark, have you built any new pedals lately?
5/20/2004 2:11 PM
Mark Hammer

""BTW Mark, have you built any new pedals lately?"  
"Built" can mean a lot of things. I have a whole slew of mostly, partly, and fully-populated boards that are awaiting the diligent connection of pots, jacks, and power supply leads, and the installation into cases. Ever since I figured out how to make PCBs fast and cheap with glossy photopaper, my capacity to generate the boards has tended to outstrip my capacity to deliver the finishing touches.  
I did put together a "May Queen" booster a couple of weeks ago and was pleased with the sound. Right now, though, I have 3 different mini-amps (two of them battery operated with big batteries) I'm trying to plan out in between household projects and family commitments. I've been perusing a big stack of amp schematics from the solid-state lines of Crate, Fender, and Marshall, looking for ideas. Lots there to work with.
5/20/2004 6:58 PM
Yeah, building an amp sounds like a really neat project! I may try to tackle something like that one day. But I suppose it wouldn't take too long before the cost goes through the roof. None the less, I guess you'd still be ahead because a handwired ptp guitar amp is pretty much unaffordable. Plus you get the satisfaction and knowledge of building it yourself plus you can tweak the hell out of the thing until you arrive at your own idea of sonic Nirvana.
5/20/2004 8:20 PM
Mark Hammer

Oh, I'm not looking for sonic nirvana, and I'm unlikely to make anything that involves any components that cost more than $10 per part. I have a 95% original 59 Bassman and tweed Princeton, so I'm pretty well set in that regard.  
The amps under construction are just portable doohickeys for keeping around the test bench or bringing on vacation trips. One is also for a friend's kid who currently plays through a little 6" speaker 3-knob Univox that came with his cheapo guitar. He deserves a little more inspiration than that, and I figure that 20W with channel switching and onboard FX, through a pair of 8" speakers in a closed cab ought to be enough of a contrast in that regard.
5/24/2004 1:52 PM
Interesting, why not give him a proper speaker size? 8" is never going to sound too hot.  
Any chance you could share your glossy photopaper techniques with us? I'd certainly like to know how to knock up PCB's cheaply (PNP Is about £15 here).  
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