OK, I replaced the arcing socket and the five components mounted on it.
Now the audio quality is nice -- at least as good as before. I still hear occasional crashing and static, however, so I'll have to investigate further.
In similar cases with my Admiral 24A12 and 24C15 consoles, I had to replace the uninsulated mica capacitors inside the audio IF cans. Does anyone know whether the 810 has that type of naked mica inside these cans?
Regards,
Phil Nelson
Phil's Old Radios
https://antiqueradio.org/index.html