Troubles with AZM Mini-Booster

[MaxM]

Hi, as a first project I tried to build the AZM Mini-Booster. It looks pretty good at this time...but it there is absolutely no sound when tnnring on the effect! Only a little buzz. The amplification seems to work because the buzz is getting louder when using the poti. In bypass mode everything is pretty fine...any ideas, any help?
Thanks, Max

[MJ Harnish]

First thing to check with any new pedal is the orientation of the transistors; it's easy to put them in backwards.  You might also try taking voltage measurements on each of the transistor legs and posting them since they can reveal a lot...

[aron]

The amplification seems to work because the buzz is getting louder when using the poti. In bypass mode everything is pretty fine...any ideas, any help?

Your input jack is probably incorrectly wired or there's a problem with the solder joints before or at the input cap of the Mini-Booster.

The good news is that it sounds like the booster is working. The bad news is signal is not entering it.

Should be a quick fix.