> I always kept a few cards in my shirt pocked to stick > behind the mounted reel and trip the write-enable mechanism (which > latched). When the autoloading 66x drives came in, part of my world > disappeared. I've never tried to see if that trick works on minicomputer > reel-to-reel drives.
It should do. The few minicomputer magtape drives I've been inside have a solenoid on the write-enable pin. If it is pushed in part way, a microswtich operated and the solenoid pulls it in further to keep it away from the write enable ring. Otherwise, I think there would be tremendous wear on said ring. -tony