Update: New tubes arrived (very nice they are too), but it hasnt solved the problem.
So, caps next. Good source of caps in the UK anyone? Juju, Im looking at you! The big red one you just swapped over in your vintage amp looks to be the same as the one in mine.
On another point, since Im still able to plug the amp in (and have been to test it), I assume the caps could have quite some kick to them. What is really the same way to remove them?
Thanks Smojo :o)
The solder joints arnt very accesible unfortunately, but they do all look good. Il definately be keeping a hand in my pocket anyway!! So funny :o)
I already tried cleaning the valve seats but again, no change. Im thinking the big red cap may be to blame... its old, and contacts to all pots (and they are all buzzing).
Trouble is finding one... Ebay has nothing, so Im off to Maplins.
50+50+50uf 350VDC, 50uf red outer? Certainly sir, just £2 each.... NOT.
Shoulda known it wasnt going to be straight forward! lol
The full cap details (just for your entertainment) are thus;
Made by 'CCL'
50 + 50+ 50 μf
350 V.D.C WKG
Red 50 μf outer
PP 77 S J72
As far as I can tell, Juju is right - 3 x + and 1 x -, so 4 terminals...
Cunning plan though - Im gonna speak to the chap who designed the amp (he still repairs them), and see where he gets his!
Failing that, Il be going the 3-stuck-together route :o)