Those are VHF rated transistors. Does it have the traditional
BB matching xformers or is it TRF circuits?

no xformers on the board. Excuse my ignorance but what is a TRF circuit?

Tuned Radio Frequency.

The input and output circuits are fixed in one small range.
Capacitors and inductors only have certain values at certain
frequencies. At others, the match is very poor.

Maybe the amp is designed for another frequency.

Amps with broadband matching transformers will work over
serveral decades of range. Most active devices will output
more at lower frequencies.