#1
hi guys as the thitle says my amp has stopped working
its an epiphone valve special
i have just pulled it apart and plugged everything in. i get sound from my guitar for about 5 seconds and then it cuts out. i have checked all fuses and the power valve is glowing.

does anyone know what is up with my baby

any help is appreciated
Gear:
Gibson Les Paul Studio
Custom Built Acoustic
Epiphone Valve Special
Marshall Guv'nor GV2
tanglewood 1000 pu resonator
washborn acoustic
My Build
#2
Maybe one of your preamps died?
Epiphone G-400
GFS Crunchy PAF - Bridge

DigiTech Bad Monkey
iSP Decimator

New Amp Fund: Depleted
#3
can anyone confirm this, whether or not it is the pre amp valves. should they glow like the power amp valve because they don't.
Gear:
Gibson Les Paul Studio
Custom Built Acoustic
Epiphone Valve Special
Marshall Guv'nor GV2
tanglewood 1000 pu resonator
washborn acoustic
My Build
#4
no.

imo your preamp valves should be pretty dim relative to power valves. Your description on the surface sounds like dying power valveness. Especially if nothing has changed otherwise. Usually new tubes are an awesome thing. Your amp will come alive again, especially if you pick right. Good luck.

PS: could be something else, but bad preamp valves usually involve unwanted crackling and whatnot.
#5
Your power valves are on the way out. Not gone, but on the way. Get a new set of power valves.
...
#6
if one of either preamp or power tubes has died would the power light stay on because it does.
should i just buy some new preamp and power tubes to see if it is the problem.
or
how can i test the tubes to see if they are the problem

Gear:
Gibson Les Paul Studio
Custom Built Acoustic
Epiphone Valve Special
Marshall Guv'nor GV2
tanglewood 1000 pu resonator
washborn acoustic
My Build
#7
the light runs off outlet power and has nothing to do with your valves.

i would just focus on getting new power valves for now. unless you have the cash to replace all.

remember - keep the old as back ups.

if the only problem is the sound dies after a bit then you can bet it is power valves.
#8
so i opened it up and had a look inside

wtf, now it works with out cutting out.
i pulled the actual amp (circiut board, tubes etc) turned it upside down and it works fine.

however

when i put it back together it cuts out again
any ideas is it still the power tubes
Gear:
Gibson Les Paul Studio
Custom Built Acoustic
Epiphone Valve Special
Marshall Guv'nor GV2
tanglewood 1000 pu resonator
washborn acoustic
My Build
#9
That's very weird, my guess is probably some sort of short when the amp is in there properly. Beside taking it to a tech I don't know what to tell you.
I don't give a shit if you listen to me or not
#10
looks like that is the only option
thanks for all your help UG'ers
Gear:
Gibson Les Paul Studio
Custom Built Acoustic
Epiphone Valve Special
Marshall Guv'nor GV2
tanglewood 1000 pu resonator
washborn acoustic
My Build
#11
^ Let us know how it all goes, fixed amps are as good as new amps to us.
I don't give a shit if you listen to me or not