[Amps] 1625

[Glen Zook]

The "olde tymers" used to tell me of running like 1000 volts on the plate of a 6L6.  According to them, you had to send code pretty fast because a short "dash" turned the plate red and a long "dash" melted it!

Glen, K9STH

Website:  http://k9sth.com


--- On Thu, 2/12/09, Rex Lint <rex at lint.mv.com> wrote:

The max rating for a 6AG7 is 300 V, so you ran them at 3.3 the max voltage! It must be one tough tube.  The plate dissapation is 9 watts, so 4*9 = 36 watts, and if you pegged the 200 ma meter, the input was 200 watts, so you were probably dissapating >66 watts - about twice their rating.  I'll bet they WERE red!  
 
Water cooled?
 
I ran a heathkit AT-1 that used one for an oscillator, then used a 6L6 for the amp.  All told, about 30 watts!  If I'd only known....
 
But that was in the '50's