Magnasync Moviola Series 20 Cutters

[Matt Ziv]

Hi,
Im not quite sure if this sub forum or if this forum in general would be the proper channel for my enquiry. I’m looking for the specific sound reproducing section of the master operating and service manual for the Model 1800 vacuum tube amplifier in the old green Magnasync Moviola Series 20 cutters. Something with a schematic and voltages is the target I’m shooting for.
Thanks, Matt.

[Tony Bandiera Jr]

Just in case you can't find anything from Magnasync/Moviola:

Do a Google search for tube amplifier repair forums/manuals. All you really need is info from another type of equipment (like a tape recorder perhaps?) using the same tubes. The operating voltages of said equipment using the same tubes will be close enough to help you fix your issues. Most of the circuit designs will probably be close enough to give you a rough schematic as well.

The great thing about tube gear is that it is pretty tolerant of voltage and component values being ok over a fairly wide range, only catastrophic failures of support parts tend to really damage tubes.