M-15 Schematic

[dave_k]

A friend of mine just gave me a M-15, it dates to 1952. It has been rode hard an hung up wet. Additionally it has some sort of mod for the speaker hookup(F15N). Any way I would like to go through it and make sure things are correct before I fire it up. The speaker reads 6.9 ohms and the coil reads 4.9K ohms. Does any one know or have a schematic and or any other info that will assist?

Thanks,

Dave K