Gates Radio amplifier
 

I am repairing a Gates Radio Co. amplifier, it is labeled,
Power Amplifier
Model # 992-1715-001
Serial # 73-1184-004
Power Amplifer may be misleading, I suspect the
output is less than 10 watts.
I'm looking for a schematic or info leading me to a schematic.
Would you have any information?

Thanks
Mike