[morzh]

I figured it. The trimmers are under chassis looking down, no openings. Have to be aligned from beneath.


BUT - I just had a bit of an adventure.
While aligning a trimmer I smelled smoke! The smoke was escaping from the big 800 ohm resistor #59, the auto bias for the output.

I spentva good hour. Could not figure. The resistor sutained 180V, hence the smoke.
Eventually traced the short between the rectifier filament and that resistr. Took me to the power xfr, was afraid of interwinding short. Then i started wiggling wires in the xfmr pin panel and saw something separate and fall down in the groove of the chassis. Cannot find it. But th short went away, resistor no smokie-smokie and the radio plays again.
Whew!