Tuesday, March 10, 2009

Fuzz Factory

Well, this is not new as there have been so many FF projects lying around the net. And I just decided to do a layout since it's so very easy. Pots are mounted directly to the PCB and should be placed vertically like those in original zvex's. I used 125B type box with no problems. Please note that transistor values are my own choices. Components below the "STAB" pot(ie 4.7K, 390 ohms, and 22uF cap) is an LED anti-pop circuit.

Layout Download

Monday, March 2, 2009

Sansamp GT-2 and BDDI 3-band EQ


I heard a lot of issues regarding the active EQ's of the Sansamp GT2 or Bass Driver DI as it it too hifi sounding. Well, for me it doesn't really bothers me at all because I always like these pedals. What I have here is a 3 band active EQ taken from the other Sansamp - the Tri-AC. I didn't mean to replace the existing stock EQ of the original circuit but rather using both one at a time will be a good idea. By using a DPDT or 3PDT toggle switch, meaning only one EQ circuit will be used while bypassing the other, not bad huh?. Please watch out for the connections. The pad labeled "V/2" refers to Vref(4.5V) and should be connected in the main GT-2 board where Vref is located. You should know it's location, say, if Tonepad's board is used(ORANGE colored pcb tracks). There's plenty of room to drill on that board. IC is a matter of taste so try whatever suits you best and always use a socket.

Layout Download