The Rangemaster I built into a sweet tin that's in the finished projects thread -http://ilovefuzz.com/viewtopic.php?f=151&t=3277&start=4245 I realised it was sucking tone when bypassed. I also noticed that the volume pot added noise when it should be bypassed.
I thought perhaps the footswitch lugs were touching something so I tried it with the lid off - same problem.
So I took the battery out to see if it was some kind of power interference (I don't know much about electronics). The added noise got better but the tone suck was still there.
It's normal DPDT true bypass and I've looked over the circuit and can't find anything wrong.
Any ideas?