AMPEX AX-300 Reel-To Reel – stereo mode/ Output  knob

As removed from a mechanically functional machine. Guaranteed serviceable. Might fit other Ampex models, but I have no knowledge of cross-fitment or any expertise with this machine. Please research this prior to ordering. This listing is for ONE knob. 

Examine the pictures carefully. I apologize for the poor part descriptions, but I did not have a parts manual or any other documentation to work with.

I have no other parts for this machine other than what I have listed.