Boost problem- no boost

Started by insomniac2295, June 10, 2012, 11:52:57 PM

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insomniac2295

So I'm building this boost pedal: http://diy-layout.com/66?quicktabs_diyl_view=description#quicktabs-diyl_view
All I get is a slight volume control and I can't figure out how to approach debugging it. I'm used to tracking down grounding issues and whatnot, not this. Any guidance?

Quackzed


:-\
all i can think is that a common problem with vero's is missing a cut trace... often cuts in traces are missed and become a problem. might be worth a once over...
nothing says forever like a solid block of liquid nails!!!

insomniac2295

Hmmm one question: I accidentally placed a trace cut in the wrong place. I compensated by squeezing the resistor that went on either side of it underneith another resistor. This left the body of one resistor touching the lead of another. Could this affect anything? I don't know if the body of a resistor is conductive or not.

Quackzed

no, as long as the metal leads arent touching it should be ok. the bodies are non conductive.
you could draw out the schematic and use a highlighter to check it against the circuit. check one part at a time and highlight the parts youve checked.
its helped me track down a few wiring mistakes ive made...
nothing says forever like a solid block of liquid nails!!!

insomniac2295

Okay that's what I thought. I think I'll sit down tonight and use your approach.
I just feel like a weenie for letting a boost give me so much trouble. I know I'm new on here, but I've been building circuits for a while now and this is definitely not the most complicated thing I've built. I blame it on this being my first vero project  :icon_mrgreen:

insomniac2295

I still can't find any problems. Here's some pics





Quackzed

if you have a meter you could post the transistor voltages...
build an 'audio probe' to listen in to the circuit , see if you have signal up to a certain point in the circuit...
nothing says forever like a solid block of liquid nails!!!