Re: How to set the speed on cassette decks.
The Uher CR 240 I'm dealing with at the moment (threads passim ad nauseam) has a sleeve (magnetic?) on one cassette spindle with a reading circuit close up against it, I assume for speed regulation.
The other base I have for spares has one cassette drive reel with a reflective/black alternating radial strobe. The circuit that in mine is perhaps magnetic, instead has a photoemitter/detector assembly and presumably uses this to regulate the speed.
Jolly clever, whatever it is! It's bolted on inside the transport, so perhaps could be altered and used in another machine? Circuit diagrams are freely available so I would have thought some of the bright sparks on here would be able to modify it...
|