Grundig TK124 Valve Tube Reel To Reel Tape Recorder Demo and Teardown.
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This is my TK124 and I've done little too it. Even the original belts are passable, but will be fitting new ones soon. I just added some o rings to the perished rubber on the motor shaft and fast wind was good again. It must be one of the last valve reel to reel's made.