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Description
The capstan is a rotating spindle used to move recording tape through the mechanism of a tape recorder. The tape is threaded between the capstan and one or more rubber-covered wheels, called pinch rollers, which press against the capstan, thus providing friction necessary for the capstan to pull the tape.

Capstan size

I have a large number of reel-to-reel tapes left by my father- in-law. He recorded them at 1 7/8 (i think that's correct, lowest speed possible). Unfortunately, my tape deck, pioneer rt-909, has only 9.5 as the lowest speed. Is it possible to change the capstan (provided i could find one) to be able to play these tapes?