Page 1 of 1

PSK SOD-2 Super Overdrive (not a SD-1, LM308 inside)  [schematic]

Posted: 14 Aug 2021, 21:06
by Matlevo12
Hey everyone.
I stumbled upon a "old" psk boss clone, which turns out to be a rat with asymmetrical soft clipping, with buffered bypass... or a sd-1 using a LM308, if you'd prefer.

I tried to find some other pedals like this one, but I couldn't, does anyone know about some already existing overdrives using lm308 / rat with only feedback diodes clipping?

Thanks!

Here are some pics, and a schematic from what I traced :
Image
Image
Image
Image

PS : yes R2 is 470 and not 47 ohm

Re: PSK SOD-2 Super Overdrive (not a SD-1, LM308 inside)

Posted: 29 Oct 2021, 17:04
by Matlevo12
I just dis overed that the proco brat/roadkill is just about the same pedal, if you add hardclipping diodes in the unpopulated locations.
But... The psk pedal came way before the Brat :)

Re: PSK SOD-2 Super Overdrive (not a SD-1, LM308 inside)

Posted: 28 Apr 2023, 07:42
by vangelismetheny
Matlevo, thank you so much for your info and nice tracing!!!
It's help me a lot.
Cheers bro!

Re: PSK SOD-2 Super Overdrive (not a SD-1, LM308 inside)

Posted: 28 Apr 2023, 17:47
by bmxguitarsbmx
This looks interesting. How does it sound?