I have 2 tape decks with different speed problems:
- Yamaha KX360 - the speed has slowed so that it is roughly one semitone below pitch, but is consistent,
- Technics RSB18 - speed fluctuates - it seems mostly like it gets slower then picks up again, at various points in the tape.
Any thoughts on how to correct the speed issues on these decks or what I might look for? Are there any common causes for this type of behaviour? I checked inside the Yamaha and found that it doesn't (unless it eluded me) have a speed control on the PC board.