[Amps] Multi-Amp w/ Power Combiners

[Val]

Sam,

I'm sorry to be so late with this topic,  but you might be interested to 
know that there is a solution on the market 
http://www.acom-bg.com/amplifiers3x2000.html, that answers your questions.

73, Val LZ1VB

>I have often thought of why I do not see the running of multiple HF Tube
> amps with power combining networks. It would seem that the overall cost of
> using more than one smaller amplifier would be a net savings because of 
> the
> relatively low cost of building medium power amps. It seems like a
> reasonable way to build a lot of power and spread the stress of a system 
> out
> a bit to lower priced components. It also partially eliminates the single
> point of failure to take all the power down with a single glitch. I
> understand that frequency agility would be more cumbersome and time
> consuming, but in many applications, you don't move much. Neither input 
> nor
> output combining is complicated so long as you are staying fairly put with
> regard to frequency. Does anybody do this outside of broadcasting and
> commercial? N9FUT
>