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[AMPS] Key down time

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Subject: [AMPS] Key down time
From: (Jon Ogden)
Date: Mon, 9 Mar 98 13:46:32 -0600
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 

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 

Just my thoughts.



Jon Ogden

"A life lived in fear is a life half lived."

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