View Single Post
Old 18th Jun 2019, 6:02 pm   #78
Radio Wrangler
Moderator
 
Radio Wrangler's Avatar
 
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,857
Default Re: Mullard 5-10 amplifier

Maybe it's time to try a good low noise resistor in place of that 1 meg carbon comp? They are amongst the noisiest of resistors from new, and they have habits of going high over time and also turning into carbon microphones.

It fits a couple of the symptoms, so would be a suitable place to start the hunt.

David
__________________
Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
Radio Wrangler is offline