Like C53 (the infamous 'lightning crash' cap), C52 is located in a very buried part of the radio. There are threads devoted to just getting to and removing C53 (let alone replacement). Those caps are entombed within the unmovable parts under the 7F8 valve.
(Note: C52 and C53 here are from the Hallicrafters nomenclature and not the popular Sams Photofact for this set)
Quote:
Originally Posted by Silicon
The oscillator and mixer valves (a double triode) derive their HT from the reservoir capacitor.
There are then several R C stages to provide decoupling.
Have you ever monitored the HT voltage at C52 over the first hour after switch-on to see if it changes?
|