[Amps] [Moon-net] 4CX250B in P-P 2m?

Dr. David Kirkby david.kirkby at onetel.net
Fri Mar 31 12:51:30 EST 2006


SM6CKU wrote:
> Hello guys
> Anyone knowing about a 2m kW amplifier in push-pull with 2x4CX250B?
> A friend of mine is asking....
> 73 de Ben
> _______________________________________________
> Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html
> 
> 

Yes, I know it would be *seriously* over-run. The maximum anode voltage is 2 kV 
and the maximum anode current per tube is 250 mW. So a pair of tubes should take 
no more than 1 kW of input power.

So needless to say, even if the 2 kW is input rather than output, it is at least 
2x over the tubes specs.

Or perhaps your fiend has found a way of getting 200% efficiency and so getting 
2 kW out with only 1 kW in.


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