[Jukebox-list] Hot Plate (6973)

[Carl Haines]

Ron Rich wrote:
> Carl,
> 
> If you don't see this on the list--please post it for me, as for some 
> reason my posts to the list are going into hyberspace---just "fwd" this 
> whole thing--TIA

I waited and this one never showed up on the list.  It looks like 
something has changed with your email.  Your messages are now being sent 
  with the body in HTML only.  Yahoo may have changed something with 
their email that the mailing list does not like.  I'd be curious to hear 
if anybody else on yahoo is having difficulty posting using Yahoo web mail.

> I think that what is happening there is that some of the "replacement" 
> 6973 tubes were not built to mount as they do in that amp. I think what 
> is happening is that something internal is getting too heated, and 
> "bending" just enough to cause that problem. I have seen that problem 
> too--but never with "real" 6973" tubes---perhaps I just wasn't looking??

This just helped motivate me to get a real set of 6973 tubes.  It is 
possible that the tube was damaged previous to my ownership by being 
used in an amp that needed to be recapped.  I have a 6L6 around here 
that has a plate that is deformed from excessive heat.  The output 
transformer in that amp had an open winding to go with damaged tube of 
course.

Carl Haines