Does anyone have a source for the volume control/switch for a Sherwood S7100A stereo receiver ( or have a junk unit I could buy a part from) ? The original is an Alps part. I made the mistake of spraying this one with cleaner, and the switch quit. The pots (dual) are somewhere in the 50 to 100k range with a fourth lead on each. I have not yet dissected it yet to see if the fourth leed is a ground, or is used as some sort of feedback ( I have no schematics of course). Mike Goins jmgoins@xxxxxxxx Help make your TechAssist online repair tips database better! Submit your fixes here: http://www.circuitwork.com/techassist/tip/#tips To unsubscribe write to: techassist-request@xxxxxxxxxxxxx with unsubscribe in the subject line.