[Amps] 813 efficiency

[Carl]

> ORIGINAL MESSAGE:
> On Mon, 25 Feb 2013 10:43:14 -0500, Carl wrote:
>
>>The 803 is another tube that is way underated for Pd.
>
> REPLY:
> That could be, I've never used one.
>
> It's pretty moot anyway. I suspect in a few years transistors will 
> dominate
> ham amplifiers. Yes, cooling is a problem, but I do like the no tune, no
> warmup and instant band changing they offer.
>
> A pair of Microsemi ARF 1500s can be had for less than $400 and will 
> output
> 1500 watts PEP CW/SSB or 1 kW RTTY.
>
> Tubes will never go away completely, but the little silicon guys are
> gaining. Take a look at the specs for the IC-PW1 for example. I'm in the
> market for one if anyone has one for sale.
>
> Bill, W6WRT

When devices become available that can handle 3000W output at any VSWR and 
do not use any splitters/combiners, PLUS the filters, relays or PIN's, and 
automatic ATU all hold together I may be interested.

And it has to be price competitive and have IMD specs with a similar power 
tube amp.

I dont expect that to happen anytime soon

Carl
KM1H