Really loud Pulsar

Started by impala, July 13, 2005, 02:37:24 PM

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impala

I've bulit the Pulsar from the layout found on tonepad.com. The pedal works, but seems to boost the signal significantly in addition to adding tremolo. So I've got a boost and a tremolo in the same circuit...
I've used 2N5089's instead of 2N5088, and the resistors with unobtainable values like 30k is replaced with the nearest value, for instace 33k.
The reat of the components are as they should be.
Does anyone know where the problem lies, or what I could do to fix it?
I suppose adding a trimpot somewhere in the circuit could solve the problem, but I wouldn't know where to put it.
Any ideas?

Thanks,
Chris

markr04

I can't offer any advice, but you've got something several people wish they could accomplish so easily. There's a bit of a volume drop in most builds of this. Instead of "fixing it", maybe just tame it to unity volume.
Pardon my poor English. I'm American.

sir_modulus

put a trim pot at the very end of the circuit, just like a normal volume control. See any pedal @ http://www.generalguitargadgets.com for an idea!

Cheers,

Nish

audioguy

The big question- DOES IT TICK?

NaBo

It shouldn't tick if people wire it properly... keep leads short, ground input when bypassed, blah blah, stuff in the FAQ, etc etc.  If necessary, use some of that trusty RG-174 on the in and out, badda bing badda boom.  There shouldnt be any intrinsic layout issues with the tonepad one considering how many people report it's noiseless.  So if it ticks, it's gotta be a problem with your wiring or something.

I soldered my pulsar board up the other day and couldnt get it working properly with my messy gator clipping... no tremolo and about half the volume... i'll have to try again next week and if not its time to debug... same with my latest rat board.  I've been sloppy lately  :roll:.  No more works-the-first time builds :P

impala

Thanks for all good advise!

I've tried taming the output by adding a resistor, but even a 4,7M resistor wasn't enough to bring the output down to unity level with the bypassed signal. Gotta find a larger resistor, and the problem will be solved.

And by the way, it doesn't tick!