madbeanpedals::forum

Projects => Tech Help - Projects Page => Topic started by: add4 on May 19, 2015, 09:37:18 AM

Title: mangler not not mangling
Post by: add4 on May 19, 2015, 09:37:18 AM
Hello all,

So i'm building my first fuzz face with the mangler PCB.
finished the build a few days ago, tried to rock it.. no sound. as it was late i decided to check for errors another day, looked at it yesterday: no obvious errors, double checked all resistor and cap values and orientation. Looks good to me.

Not so sure about the trannies orientation so i tried to plug silicon trannies instead and see what happened.. still nothing.

with a transistor in the socket, i put the trimmer to have 4.5v at the collector. can't remember if it was 4.5 or - 4.5, should be -, right?

What shoud i check to help you guys helping me finding the proble?
Title: Re: mangler not not mangling
Post by: playpunk on May 19, 2015, 10:53:00 AM
Well the silicone transistor won't work without swapping all the electros. Have you tried reflowing?


Sent from my iPhone using Tapatalk
Title: Re: mangler not not mangling
Post by: luks999 on May 19, 2015, 02:17:46 PM
can you post some pictures?
does bypass work?
have you double-checked your wiring?
what trannies do you use?
Title: Re: mangler not not mangling
Post by: midwayfair on May 20, 2015, 12:17:54 AM
Do this stuff, please (http://www.madbeanpedals.com/forum/index.php?topic=902.0).
Title: Re: mangler not not mangling
Post by: add4 on May 20, 2015, 07:31:03 AM
Hey all,

Just a word to say Thank you for your help with this.
I'll be busy with work and busy with playing music in the evenings for a few days, then out travelling.
So i'm not like loosing interest in this, but i won't update it before a few days :)

Thanks again for your precious advices