Maverick... absolutely dead!?!

[groovebelly]

fired up the Mav today and... Nothing!!!

switched rectifiers, changed speaker cabs, cables etc... still, nothing!

any idea on what's going on?

channel switch only gives the speaker cab a slight change in signal which is barely audible; but still, NO guitar is audible regardless of gain, master output volumes...

NO volume on either channel. Switching to another amp is completely normal...

is this a preamp tube issue? power amp? rectifier? anything else?
thoughts appreciated...

 

[mikey383]

Try replacing V1. I'm willing to bet it died. It's the input stages, so if it goes out, the amp won't have any sound at all.

 

[plapnab]

Try replacing V1. I'm willing to bet it died. It's the input stages, so if it goes out, the amp won't have any sound at all.

That would be my guess. If that's not it, start switching out tubes...hopefully, that's all that it is.

 

[vitor gracie]

Same thing happened to my Lonestar. Try putting a brand new rectifier tube in it. My Lonestar had a short in the rectifier tube and it kept blowing fuses because of it.

 

[groovebelly]

so, flipped pre tubes around today and found a 'dusted' V3...

glass split in half, with a powdery white coating to the pointy top of the tube...

once replaced, all is good in Mav-land again!

I've never seen a preamp tube broken cleanly in half before?!?

 

[MrMarkIII]

Do not snort the white powder! :lol:
So, who dropped the amp? Tubes physically break because they've been, uh, physically "challenged".

 

[groovebelly]

The amp came back from a trade so it was likely
during that transition?!?

 

[groovebelly]

there she is...

 

[guitarzan1143]

same thing happened to one of my power tubes, weirdest thing, same break. I did not drop it (i baby my tubes/tube amps), it was sitting on my table, i went to open it to install it after it was sitting for a week, and it was broken just like that. maybe it was the pressure when it spent the night in my car accidently? no idea.