pedal moding people!

Davey

Goliath of Tone
what is the diference between 1N4001 and 1N4004 diodes, in an SD1 ?

anybody got any experience?

and which caps do you use?
 
Re: pedal moding people!

Can't say for sure but I think the 1N4004's have a higher voltage threshold so that may make the pedal a little louder vs. 1N4001's. Wouldn't hurt to try them so long as the leads fit through the PCB.

As for caps, I've been using the red Panasonic film caps. Low noise, small footprint, and cheap. Which reminds me, I need to order some soon. If you can't get the Panasonics, any film cap will do the trick.

I thought I left out the diode swaps on my page but they're there near the bottom, and I didn't change D6, just D4 & D5.
 
Re: pedal moding people!

Green Xicon Poly's. Mouser Part numbers starting with 140-PM2A... or 140-PF1H...
 
Re: pedal moding people!

i got two 47nK and one ceramic 104(freakin)Z!!

the store, that calls itself an electronics store doesnt have what i want.. great huh?

and if i ordered online, i'd get raped on shipping, cos the stuff would cost me less than 50c
 
Re: pedal moding people!

ok, i wired it up.. cant test it out yet though ...

the blue led looks nice though :D
got a white one too, but the blue looks nicer
 
Re: pedal moding people!

SD-1 is a great circuit, tons of ways to modify it. Endless hours of fun.

I modified one of mine so much that I actually lifted the leads off of the board in the clipping diodes section :smack: I tried almost everything in there. It was fun.
 
Re: pedal moding people!

If you're gonna go swapping caps/diodes/resisters and even op amps, SOCKET THEM! That will save the PCB traces from getting lifted.

Davey, you might want to increase the LED resistor a little bit with the blue one in there (not sure off the top of my head which one that is). Blue LEDs use more current than the red ones. Raising the resistor some can bring that draw back down and the LED will still be plenty bright.
 
Re: pedal moding people!

naw.. it's ok as is.. i just go blind for a minute when i look at the knobs, is all :D
 
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