[AMRadio] Screen Modulated 813

[SBJohnston at aol.com]

brett.gazdzinski at verizonbusiness.com writes:

> Most 813's had graphite plates, and I never remember
> them showing color, I always thought that would be way beyond
> what they were good for, or was good for them...if they were glowing!

I was testing my single-813 grounded-grid amp the other day and had it making 
500 watts out cw.  The plate was a bit red at peak output, but getting very 
red fast off the peak of the tuning.  

Steve WD8DAS