[Amps] 813 Amplifier Article

[mikea]

On Thu, Mar 31, 2011 at 12:03:25PM -0500, Diane & Edward Swynar wrote:
> Hi Rob,
> 
> D'you want RARE...?
> 
> How about those Eimac water-cooled tubes that were used in mobile linear
> amplifier designs by Bill Orr in the late 50's/early 60's...?!
> 
> I believe their type designations were prefixed by the letter "W"...

Not at all rare. Not common in amateur gear, but fairly common in
industrial and commercial gear. 

-- 
Mike Andrews, W5EGO
mikea at mikea.ath.cx
Tired old sysadmin