Hi,
Just got my s/h Mark IV today and I think one of the tubes in blown.
It's one of the outside class A EL34's. It doesn't glow AT ALL. The other 3 glow - probably far too much!
I put in an EL34 from my Marshall and turned it onto standby, sure enough it started glowing so I'm sure the original tube is dead.
The strange thing is that the amp is working fine with the duff tube! It sounds ok, perhaps not as bright as it might but I think all the tubes need changing.
So is it ok to use it like this? Is the other EL34 going to blow quite quickly? I am doing a full re-tube but is it ok to play it in this condition while I wait for them to arrive?
Maybe it hasn't gone but the other is drawing too much current so it is not glowing? Does anyone have a clue what might be happening?
I wanted to use the Bias rite to check the current but looks like I'm going to have to take it out of the chasis to do that
Thanks!
Just got my s/h Mark IV today and I think one of the tubes in blown.
It's one of the outside class A EL34's. It doesn't glow AT ALL. The other 3 glow - probably far too much!
I put in an EL34 from my Marshall and turned it onto standby, sure enough it started glowing so I'm sure the original tube is dead.
The strange thing is that the amp is working fine with the duff tube! It sounds ok, perhaps not as bright as it might but I think all the tubes need changing.
So is it ok to use it like this? Is the other EL34 going to blow quite quickly? I am doing a full re-tube but is it ok to play it in this condition while I wait for them to arrive?
Maybe it hasn't gone but the other is drawing too much current so it is not glowing? Does anyone have a clue what might be happening?
I wanted to use the Bias rite to check the current but looks like I'm going to have to take it out of the chasis to do that
Thanks!