Hi Don....welll...ya shot my lights out. :)
I think you are correct if I were doing long-winded RTTY ragchews like
we have done in the past. But the duty cycle is VERY short for RTTY
contesting and (I'm guessing here, less than 50%. I also run a very
good fan. The T4's ran very cool indeed..even set up to draw 300ma.
Curt
On 1/4/2012 7:43 PM, Don Cunningham wrote:
Bob,
On RTTY, peaks are the same as average. It is continuous duty. I
wouldn't run the T4XC much over 50W, with tubes as expensive as they
are today if it were me. You have to make your own choice, but there
is a BIG difference in the duty cycles of SSB and sound card RTTY.
For sure I wouldn't run much over 75W, and then with a LOT of fan
moving hot air out!! I know, Garey, you ran T4XB's full out for
years, HI HI. 6JB6's were 2 buck apiece at the TV shop too!!!!!
73,
Don, WB5HAK
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