Hi,

The R.F gain on my AR88D has to turned almost fully clockwise to hear any stations. I can pick up stations across the bands but can only hear them clearly when the R.F gain is full on. I thought the pot (R46) may have failed.
I detached the RF gain pot and tested, the pot measured from 0K to 68K. The two resistors to ground are both in tolerance.

All bath tub capacitors were replaced. I had to replace dud capacitors in the RF unit to get all bands working and the odd resistors that had gone high. Up until recently the set was working OK. Then the issue with low RF gain.

All tubes have been checked and OK. I'm endeavouring to understand the RCA wiring schematic ;-) Has anybody encountered this issue before?

Many thanks,
Tim