Help!!
I got this 2466 second hand off e-bay and played it non stop for like 5 hours and they were the 5 of the happiest hours of my life. I get up next morning and start playing again only this time about 10 minutes in the sounds goes really quiet and fuzzy. I’m sure it’s something to do with the preamp ‘cause it sounds the same from the line out. I’ve checked all the leads involved and the valves are all still lit up (I even changed one preamp valve that wasn't quiet as lit up as the others).
Any ideas?