well Radio Shack is dead.. so that is out.
google dead today? (what else is there for the dead? IDK)
Public Address Amplifier (1991)
and old. real old.
the free users manual is on line, googled.
but it had no real schematic there new..
the users guide shows how to connect it only and use it.
repairs need 2 things, (besides shop tools and meters)
a schematic
and the BOM bill or materials. (parts list)
and many parts inside are not sold 31 years later.
google away, for ever and ever there.
https://search.brave.com/search?q=realistic+MPA+45-35+%2C+schematic&source=web
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