.  PLEASE READ ALL OF THIS BEFORE YOU BID .  YOU ARE BIDDING ON  A   TEAC  X-7R  REEL TO REEL  KNOB FOR MIC, LINE OUTPUT, SEE PHOTOS.   THIS IS THE OUTER KNOB AND BASE.  PLEASE CHECK OUT MY OTHER   TEAC X-7R PARTS.  ALSO,  PLEASE CHECK OUT MY VINTAGE 7" REEL TO REEL TAPES FROM DIFFERENT GENRES.   EMAIL ME IF YOU HAVE ANY QUESTIONS BEFORE BIDDING.