Mark V revisions?

[purpledc]

Now we all know there were a few variations of all the different mark amps. Has anyone heard of variations of the Mark V existing? the reason I ask is that my head was made in 09. And since then I know they have switched the OEM supplier for their 12ax7 tubes and Im just curious if anyone has heard of them revamping this amp in any way.

 

[HaggertysMusic]

No revisions yet.

 

[rocknroll9225]

The only revisions so far have been aesthetic, so the circuit has remained exactly the same. The first ones had a bar in the back to protect the tubes, which turned into a silver cage and then a black cage. The EQ light was also noticeably more red than orange on the earlier ones and they slightly altered the mark v logo a few months into production.

 

[phyrexia]

The first ones had a bar in the back to protect the tubes, which turned into a silver cage and then a black cage.

IIRC, this was to comply with UL specifications which require tubes to be enclosed.

 

[Scary]

On the early ones the lettering on the face plate was easily rubbed off. I have one of those.

 

[lesterpaul]

what they should have done is make the f'n V-1 easier to change!!!!!!!!!!!!!!!!!!!(i just went thru that deal again....almost started drinking whiskey again)

 

[bjoneill74]

It's nearly impossible to get to. There's a giant transformer in the way and no room to really get your hands in there.
I think I'll just remove the chassis from the head cabinet when I go to change the preamp tubes.

The power tubes are easy enough to get to though.

Brian

 

[purpledc]

im blessed with skinny hands. I dont have a problem swapping V1. The first time I went to do it I thought I was losing my mind. Now its like changing a light bulb. A very oddly placed light bulb.

 

[jmontgomery]

I didn't have any problem with removing the V1 tube or its cover. I didn't have any problem installing the replacement tube. I then went on to break the tube in half while trying to install the cover over it. :evil: :evil: Lucky for me there was enough glass left to lift the tube back out. Next time I'm just going to leave the cover off of it.