Larmar PPIMV on 18watt marshall build wont go completely silent?

[kerobit]

I installed a Lar Mar style master volume in an 18 watt marshall build. It works, but it only goes so low, the amp is still fairly loud the whole time, but it helps. Any ideas other than a faulty pot?

[d95err]

Is it a standard 18w-build (Marshall 1974)? Any variant? Any mods? Please post the schematic (or a link to it).

Have you measured the resistance to ground on each side of the pot when you turn it all the way down?

[pdf64]

Photos of the build and the master volume?

[sluckey]

I installed a Lar Mar style master volume in an 18 watt marshall build. It works, but it only goes so low, the amp is still fairly loud the whole time, but it helps. Any ideas other than a faulty pot?

If the pot is good then you have a wiring error.