In regards to key down time on amplifiers:
I believe any amplifier can run keyed down indefinitely given:
1.) Proper cooling of the tube to keep it within temp limits
2.) Heavy duty enough power supply (the tube isn't the only thing getting
warm!).
If these two things are done, then there is really no reason why the amp
can't be run continuously. If you doubt me, realize that a lot of
broadcast stations use tube amps even today. These ARE keyed
continously. They also have massive cooling and power supplies.
While my tube amplifier experience is limited (eg: my 4-1000A), I have
many years of solid state amp design experience. There is nothing in
the RF design of an amplifier that would preclude it from running
continually.
Just my thoughts.
Jon
KE9NA
---------------------------------------------------------------------------
Jon Ogden
jono@webspun.com
www.qsl.net/ke9na
"A life lived in fear is a life half lived."
--
FAQ on WWW: http://www.contesting.com/ampfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|