Marshall problem

[diffrent strings]

I have a Marshall jtm 60 that will run at only at half power I tried new power tubes but I still get no volume out of it. Do you guys know what might be wrong with it?

[diffrent strings]

Re: Marshall problem

I screwed up when I said it gets no volume what i meant was it gets minimal volume so the problem is not a fuse

[Lordofgain]

Re: Marshall problem

How old is the 60? Do you think maybe the transformer puked out on you?

[diffrent strings]

Re: Marshall problem

It,s about 8 years old but it hasn,t worked properly for 2, the amp never was never driven very hard it's just been a piece of shit from the getgo

[The Denim Knight]

Re: Marshall problem

^^Key word - "Piece of shit"

[VitaminG]

Re: Marshall problem

Originally posted by The Denim Knight:
^^Key word - "Piece of shit"

<font size="2" face="Verdana, Helvetica, sans-serif">well, that great piece of advice should sort out the problem. [img]graemlins/eyes.gif[/img]

[Lordofgain]

Re: Marshall problem

Originally posted by The Denim Knight:
^^Key word - "Piece of shit"

<font size="2" face="Verdana, Helvetica, sans-serif">What a plethora of good advice you seem to have, been at this long?

[JACKSONFREAK]

Re: Marshall problem

Assuming the amp has been rebiased properly when the tubes were replaced last time. My guess would be there is something wrong with the out put transformer. I had a Laney AOR that did the same thing. I was being blown away by a peavey bandit 30 while my 100 watt head was on 9. I new something was up. And it was the trany. Well 300 bucks later it sounded great and had full power.
Loud ass amp too. It sounds like there is a current flow issue with your Marshall. Its either not getting full voltage to the trany or the tranny isn't puting out the power.
Gil

[Lordofgain]

Re: Marshall problem

OK, what kind of tubes were in it and what kind of tubes did you put in and how did you bias them?

[Lordofgain]

Re: Marshall problem

Originally posted by JACKSONFREAK:
Assuming the amp has been rebiased properly when the tubes were replaced last time. My guess would be there is something wrong with the out put transformer. I had a Laney AOR that did the same thing. I was being blown away by a peavey bandit 30 while my 100 watt head was on 9. I new something was up. And it was the trany. Well 300 bucks later it sounded great and had full power.
Loud ass amp too. It sounds like there is a current flow issue with your Marshall. Its either not getting full voltage to the trany or the tranny isn't puting out the power.
Gil

<font size="2" face="Verdana, Helvetica, sans-serif">Thats what I was thinking also. A nice OE transformer would probavly put some serious Marshall a@@ kickin' back in that amp.

[diffrent strings]

Re: Marshall problem

Thanks for the advice guys I was hoping it was something minor,this amp has given me nothing but trouble but that's what happens when you don't research you're puchases properly