Many years ago a friend gave me a 2000II preamp. It's been on the shelf since then. Recently I checked it out to make sure it functioned and permanently loaned it to my brother. It turns out that the volume control doesn't go completely off. It's not some faint music. It's readily audible in another room. With the pot full counter clock wise the resistance from the wiper to the ground terminal doesn't go to zero. The on off switch is integrated into the pot and it appears that the stop on the switch is preventing the pot from going full off. Has anybody seen this? I'm reluctant to disassemble the pot as I doubt there are replacements.