Zenith Royal B47 schematic

[zeno]

Its in Sams TSM145. I dont have it. TSM were separate from the regular
Sams series & not many got them. They cover quite a few small radios
in one volume. Sams also had other separate series for specialties such
as MHF ( modular HiFi ) , AR ( auto radio ) CB (CB) etc.

The output design is quite typical. Fix almost always is change all three
transistors, check low ohm resistors in output & change the speaker
coupling cap ( usually between 220mfd & 470mfd). When you have audio outs & drivers DC coupled shot gunning is best.

73 Zeno
LFOD !