Polytone repair

[Sredna]

I just got my hands on a Polytone Mini/Teeny Brute where the output transistors
seems to be blown. Its a smaller model (60/80W, 10" speaker) with velvet clothing
from 1980.

Does anyone here have experience with these amps?
It seems to hard to find schematics in the net allthough the circuit
seems to be simple enough.

The transistors are 2N5880 and 2N5882, any known substitutes?

Thanks,

Anders