[Amps] Centurion cooling improvement ideas for AM service

[Joe Isabella]

But that's only if you transmit a full power CW carrier.  A keyed amp with no drive at all
dissapates less than an amp putting out 300W carrier (DC input power), and less than an amp
putting out 1200W PEP, regardless of mode.

Joe,
N3JI

--- "Rob Atkinson, K5UJ" <k5uj at hotmail.com> wrote:
>>>SNIP<<< 
> AM isn't so simple, and there are some paradoxes for those familiar with SSB 
> operation only.
> One is that an amp in AM service actually runs cooler when the driving 
> carrier is modulated and the
> amp is boosting sidebands and the carrier; it runs a bit hotter when you are 
> not saying anything and it's keyed and txing carrier only.  since it's tuned 
> for 4x carrier power, efficiency is higher and heat dissipation less when 
> getting full voice.  So, don't shut up!  Dead air = meltdown hi hi.
> 
> Rob/K5UJ
> 
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