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Messages - UM7

#1
Well, I've been wanting some more fuzz recently.  I have a couple tube amps (DIY) but no pedals, so I ordered a few PCBs including the Pepper Spray and the Bumble Bee.  Gah, they call for germanium transistors (3x NKT213, 1x 2N404A) which means I have to source them, which means an additional supplier... or does it?  I was going to stick random silicon transistors in them, but then I found a stash of old transistors.  Here are some that I found:


  • One 2N1307, hfe=220
  • A few 2N322, hfe=30-40
  • A few CK722, hfe=40-180 (Archer, not Rayethon)

Does anyone here have some wisdom to share about these transistors?  From what I understand, the CK722s are off-brand transistors rebranded as CK722s after Rayethon stopped making them.  How should I pick transistors for my pedals?