i think they wired the trimpot similar to the sustain control on a big muff.. i have not finished tracing it out yet.. because the guitar shop i work at just got an apocalypse pedal in and instead of tracing this i decided to remove portions of my hearing range..bubstance wrote:If anyone with a 4 transistor Fuzz War could check something, I'd be very grateful. There's a mystery resistor tied to a 100R and one lug of the trimmer... in the pictures provided by headless I can see 3 of the bands (the last three; black, red, gold) but the first band is completely obscured by the battery leads. I'd guess it's either 1K or 2K, but any info would be much appreciated.
so i can either post pics of the apocalypse or trace this circuit.. i have a busy weekend and i can only do one or the other..
i was looking for this yesterday and was going to post it.. and yeah i'm pretty sure DBA was trying to be different and stuck the transistors in backwards.. I read somewhere the guy did some 'circuit bending' awhile back..but since i have friends that are into 'circuit bending' i'm going to avoid that whole topic.. I do however think they have come a long way from their beginnings.. and yeah they do need to use more solder on their builds.. some of the traces are way to thin, while others are way to thick..but i would assume they are still just 'fucking around' with a pcb layout program..the underside of the apocalypse doesnt appear to have too many of the thin/thick traces.. and since that is the newest release i would hope they stick with cleaner layouts..culturejam wrote:So I just googled "reverse beta" to see if I could do some reading on the topic. First search result:
http://www.muzique.com/lab/reverse.htm
However, the most interesting effect is when this reverse booster circuit is driven into clipping - it clips in a matter totally unlike that of the basic common emitter circuit! The overdriven reverse booster generates a mess of harmonics different from other clipping circuits and configurations.
did you have the transistors in reversed? collector to ground, emitters to the positive voltage? if you had it bread-boarded and tore it apart, wait unitl we come up with the 4 transistor model it looks like a better circuit..ShortScaleMike wrote:Well consider me schooled! My frustration with this pedal came from building one and struggling manfully to get anything decent out of it without extensive changes. Maybe I missed something stupid.
I appreciate all your responses and the tech insight.
I'm not a fan of the Tubescreamer though, so count me out there.
sorry about the tube screamer comments..i hate tube screamers, its probably the most overrated, over-cloned, over-discussed pedal on the market..