It has the set screw.
Akai Roberts Electronics 770X Reel to Reel Recorder – Teletechproaudio
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Roberts Reel to Reel Stereo 2 Track Recorder 770 X Vintage Parts or Repair 4942 for sale online
CLEAN Vintage ROBERTS 770 TAPE RECORDER, working with GREAT SOUND
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Phantom's Vintage Reel 2 Reel Tape Recorder Online Museum Inventory P to R
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