Download the 6pp catalog for the Eumig FL-1000 cassette deck:
DOWNLOAD: EumigFL1000
Eumig was apparently primarily a film-camera/projector maker, ok, but that doesn’t explain why the FL1000 was designed to be controlled by a Commodore Pet or Apple 2. Actually, you could apparently control 3 of the goddamn things at once. I wonder if there is a single one of these things left working on the planet today.