The whole line
Factory paper that spans more than one model.
1 document held.
Service training binder
A service tech's binder — hand-labelled "lots of info, parts etc, various model Otari tape machines" — mixing Otari workshop training slides (bias, equalization, flux levels, balanced lines, servo control) with factory cross-reference lists for heads, pinch rollers, remotes, VU meters and connectors across the whole product line.
The MX-5050 appears throughout the reference lists: pinch roller part numbers (a previous owner highlighted exactly those rows), the "old MX-5050 series" VU meter and lamp numbers, and the CB-102 remote. 58-page scan, 1.5 MB.