Troubleshooting, racking my brains here.

[druz15]

So I'm putting together a double booster for a customer, he tried the rangemaster I built, but wanted an option to have a full range boost AND a treble boost at the same time.

So I built up a 2nd rangemaster, and then built a boost based on a rangemaster but with a full frequency boost and a tad more gain.

These are germanium positive ground builds, but I build them flipped so they don't need a charge pump or weird PSU, and can be daisy-chained.

Breadboarded everything up, worked fine, built them onto vero board, tested fine in my test unit. Tested fine with them chained together also (the full boost drives the treble boost and actually gets into fuzz territory if you crank them both)

Boxed them up and got nothing except bypassed signal, LEDs light up but no effect.
Removed the lot, retested, circuits still running fine. Saw that the pot lugs were almost touching the enclosure so bent them out of the way.
Re-boxed but with the wires still going to my test board, this time they worked, so I figured must have been the pot lugs.

Re-installed the TB wiring and again got nothing.

Voltages are fine, tested the 3pdts with a multimeter and everything is behaving as it should.

So why would two circuits work fine out of a box, and when placed in a box all of a sudden not work?

100% sure True Bypass wiring is correct (I've re-soldered it twice now and it's wired exactly like my test board)

Any helpful suggestions for troubleshooting would be great. My thinking is it's something to do with two pedals sharing the common power input or something (even though when I ran them together on my test board there were no problems, and all the voltages still seem fine)

Thanks in advance troops

[jeremyb]

Sounds like maybe the +ve is touching ground at some point?

[AmpShop]

Have you tried restarting it?

[druz15]

Have you tried restarting it?

I turned the router off and back on again, still no bloody internet

[AmpShop]

On a serious note:
1. Check your DC voltages
2. Put a signal into it and follow it through

[druz15]

Sounds like maybe the +ve is touching ground at some point?

Don't think so am measuring 8.8v on the +ve rails of both circuits, all I can think of is the input being grounded somewhere but my multimeter says no

[handlefras]

Ah, I hate this when building pedals. Sorry I'm no help, but it looks like you're on the right path, something is shorting on the enclosure, or the twisting of wires when inserting/removing from the enclosure is dislodging a cold solder joint?

[alanp]

http://www.diystompboxes.com/pedals/debug.html

Check the Audio Probe part. Start from the input jack, and work your way through the circuit past every component in the signal chain.

[Rog]

Slightly thinking outside of the square I know, but since all you've done is put a working circuit into a metal box and it stops working, is it possible that the shaft bodies of the pots have some potential and coupling them together creates a short? You could easily test for such a thing outside of the box by using clip leads between the shaft bodies.

[fuzziebro]

These are germanium positive ground builds, but I build them flipped so they don't need a charge pump or weird PSU, and can be daisy-chained.

Could you elaborate on this?