Troggs Fuzz?!?!?

[davent]

You guys rule.  Gonna buy that CD, too!

Wonder if one can simply sand a Hammond box into a wedge with a disc sander and plenty of time...

BTW, my buddy is bidding on a Buzzaround clone on Ebay right now, so I'm off the hook.  I don't have too many nice Ge transistors hanging around these days anyway.

Pretty sure John used a hacksaw and the bottom holes needed to be retapped. The 125b is deeper then a 1590b so gives more room to play with.

http://www.diystompboxes.com/smfforum/index.php?topic=36392.msg891493#msg891493

[John Lyons]

A disk sander spins way to fast to use as a tool to remove a lot of metal, especially zink/aluminum alloy.
You heat up the disk and box FAST, the metal will gum up the disk and you'll be playing "hot potato"
in no time. Hack saw and belt sander touch up is the way to go. Buy a good hack saw and you'll never
look back.

[superferrite]

BTW, my buddy is bidding on a Buzzaround clone on Ebay right now, so I'm off the hook.  I don't have too many nice Ge transistors hanging around these days anyway.

the 1st two (darlington pair) can be low hfe (40-50). it's only q3 you have to take the time to choose....so you only need one really "good" ge

Exactly my next question.  I have a half a dozen around 50 hfe.  I assume a 3 knob Tonebender is the same, since the circuits are almost identical, right?

[LucifersTrip]

BTW, my buddy is bidding on a Buzzaround clone on Ebay right now, so I'm off the hook.  I don't have too many nice Ge transistors hanging around these days anyway.

the 1st two (darlington pair) can be low hfe (40-50). it's only q3 you have to take the time to choose....so you only need one really "good" ge

Exactly my next question.  I have a half a dozen around 50 hfe.  I assume a 3 knob Tonebender is the same, since the circuits are almost identical, right?

very similar...if I remember right, the Buzzaround is a little harder to choose Q3. Q3 in a TB MKIII has that resistor from the collector that makes it a bit easier to manipulate.

if you build either, definitely try a bunch of different leakages for Q3. it makes a big difference.  I like Q3C voltage in the 2-3V range. higher will give you more bass and vice-versa. but, remember you have a tone control. so, try to set Q3C voltage so that the bassiest setting on the tone control is not too muddy. then, you'll have a perfect tone sweep.

[R.G.]

It might be useful if you need more leakage on a germanium to think about adding another germanium junction in parallel with the collector-base, always reverse biased. This leaks current from collector to base just like the internal reverse biased collector-base junction does, and has much the same effect of increasing collector current independent of what the signal and bias are doing.

In fact, I speculate that a silicon transistor with a piggybacking transistor setup to lower gain and a germanium junction from collector to base to increase leakage might be the next step toward faking a germanium with silicon at the device-physics level.

Hmm. Maybe one could use micro-PCBs with surface mount silicon transistors and one germanium diode to actually physically replace a TO-5 germanium on a PCB.

AAAACKKK!! TOO MANY IDEAS! TOO LITTLE TIME!! MAKE IT STOOOOOOPPP!!