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Old 09-29-2017, 11:50 AM
Chip Chester Chip Chester is offline
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Join Date: Apr 2012
Posts: 610
It will be a microswitch-type thing that senses whether the record tab is present in the cassette when inserted. So look where the trailing edge of the cassette sits when inserted. The record tab is about 3/8" square, and sits about a half-inch inboard of the left corner of the cassette, as viewed when inserting it into the slot. The cavity left is usually about 1/8" deep or so. Tab-out=no record.

The sensing arm of the switch would sit about an inch below your picture, lower left corner. It's not on that chassis...

There is probably also a tape tension switch that will issue a stop if the tension drops below a certain level. That may be somewhere on the chassis, and more likely to cause the problem referenced in the link you supplied. I've never tried to change the state of the record tab whilst recording, so I can't speak to what effect that would have.

Chip
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