Removable Power Tube

[atech2]

I have an RT Classic that has a removable power tube. Anyone know the story on welded power tubes vs threaded power tubes?
IIRC the level 5 valves where like this, but have never seen this on a level 7 or later. Being this is an RT Classic valve, I would guess it's post level 7.

[Sumthinwicked]

locktight works wonders

[atech2]

It's not creating a problem, seals just find and works great, but I have never encountered another one that was not laser welded in place. I actually like the fact it's removable.

So anyone know what's the story on this, is this a rare thing, or just different?

[snoopay700]

I have an RT Classic that has a removable power tube. Anyone know the story on welded power tubes vs threaded power tubes?
IIRC the level 5 valves where like this, but have never seen this on a level 7 or later. Being this is an RT Classic valve, I would guess it's post level 7.

My classic RT does the same thing.

[atech2]

I'm guessing the early valves where like this. I have two RT Classic valves and they are different.

RT02XXX =Threaded Power Tube
RT03xxx = Welded Power Tube

[snoopay700]

I'm guessing the early valves where like this. I have two RT Classic valves and they are different.

RT02XXX =Threaded Power Tube
RT03xxx = Welded Power Tube

mine's 5000 some and it's not welded.

[atech2]

I guess that blows a hole through that theroy. Hope someone can shead some light here, cause I'm as confused as ever.

Maybe some others can check there valves for welded power tubes.

[snoopay700]

it's one of those questions probably only Tom knows the answer to and why.

[atech2]

Tom's informative posts always made for interesting reading.

[Aidoneus]

This video on youtube shows tom removing the power tube from a classic

http://www.youtube.com/watch?v=2eWM4GkI1PE