This is probably the most interesting thing I’ve found. The switch labelled NORMAL / MINIMAG may not be an arbitrary modification. MINIMAG was a professional tape synchronizer manufactured by Automated Processes Inc. (API), designed...
READ MOREAmpex MM 1000 Comparative servo documentation
These aren’t necessarily interchangeable with the MM-1000, but may help explain the underlying servo architecture. Ampex MM-1100 Operation and Maintenance Manual Includes capstan servo schematics, tachometer feedback, reference oscillator, speed selection and test-point information....
READ MOREAmpex MM-1000
MM-1000 documentation – Documentation archive MM-1000 documentation – Training Manual MM-1000 documentation – Capstan Servo Kit Ampex MM 1000 – The MINIMAG discovery Ampex MM 1000 Comparative servo documentation...
READ MOREMM-1000 documentation – Documentation archive
This archive also contains two versions of the MM-1000 Operation and Maintenance Manual, accessories documentation and other supplementary material. Direct links below….. Master recording on 2″ wide tape Multimedia synchronization Sync lock accessory...
READ MOREMM-1000 documentation – Training Manual
Available in the Ampex section of the manual archive. It covers transport theory, control circuitry and mechanical assemblies. ...
READ MOREMM-1000 documentation – Capstan Servo Kit
This documents Ampex’s factory direct-drive DC capstan servo option for the MM-1000, including its tachometer feedback and speed-control arrangement. I’m not sure whether it covers the exact revision installed in my machine, but it...
READ MOREFull track to 4 tracks on tape – explained
This article from the Revox A77 explains clearly how the various tracks/channels are recorded onto a consumer or pro ¼” reel to reel tape deck. Click to download here....
READ MOREBerlant 20/30 schematic with a trimmer capacitor for the bias adjustment
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READ MOREEarly Crown tube schematics
download image RPA schematic (2) download image RPA schematic...
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