building the Booster 2.5 and I have a problem

[jamiefbolton]

So far I am in the breadboarding stage and I can't get it to sound good at all. I see that the Booster 2.5 schem is basically two Jack Orman mini-boosters. It is also similar to the BSIAB. Anyway, I've already finished my Lovepedal Eternity clone and its all fine.  I have build the Booster thee times on the breadboard and its still crap.  I simplified it down to just a normal minibooster with the Booster 2.5 values and everything was fine. So, i'm at a loss of why simply adding some more parts is causing a problem.  The sound comes out very tinny and with a squeal in the background.  Any ideas? the build is disassembled at the present time.

booster schem. http://www.diystompboxes.com/pedals/booster25.JPG

[Auke Haarsma]

http://www.diystompboxes.com/smfforum/index.php?topic=29816.0

[aron]

Perhaps somehow you are making the same mistake on the breadboard or you are getting oscillation - that's the squeal. It's hard to tell.

[jamiefbolton]

ok. thanks. i'll re breadboard and try again and then follow those debugging procedures and get back to you guys.
thanks