[Arran]

What does this set have for power resistors? Are they chassis mounted candohm type resistors with multiple taps? I was thinking that it could be causing some problems, shorted or open sections. Even the ceramic coated ones mounted on a metal rod were trouble, and G.G liked using those. One bad habit some old time repairmen had was to parallel open sections of those big resistors with replacements, of course if they decided to fix themselves you could end up with a something like a 150 ohm section becoming 75 ohms.
Regards
Arran