Manuals

Thanks to John Novack for these.
MMU2 Operating Manual
MMU2A Operating Manual

Replacement Parts

Original Part Replacement Description
Stancor LB-1212 Triad Magnetics FP12-950 Power Transformer
E-Switch TAGBLK FUNC Button
E-Switch TAGRED RUN Button
Assman A-2004-3-4-N-R Handset Jack
Panasonic LC-R061R3P 6V 1.3AH Lead Acid Battery