volume goes from 1 to 100 in a tenth of a turn

[Crate50watt]

Hey team, i just finished a 18w tmb build. Amp fires up, buzzes a bit and plays. My volume knob goes from nothing to everything in about a tenth of a turn. I mean you barely move it and it almost blows my shitty shop test speaker. Maybe a bad potentiometer? I used dougs schematic and it has a 500k audio pot in there. Also the tone knobs don't appear to be doing much either... Thanks in advance!

[Raybob]

Double check your wiring of the tone stack.

[Tony Bones]

Not to state the obvious, but it's almost certainly a wiring problem. Check that the appropriate lug on the volume pot is grounded. Check everything around the volume pot. Check everything.

Post photos of your wiring. There are a few guys here that are surprisingly good at finding problems just by looking at photos.

[jjasilli]

Also, make sure to use an audio log pot.  Linear taper can cause this issue.

[Johntb]

Some good up close pics would help.