[Elecraft] What became of the Elecraft's KPA1500 and KPA 800

[srife at swbell.net]

	Apparently someone thinks it is cost effective. What would you need
100% duty cycle at 1500 watts for anyway? We don't have broadcast licences.
I don't think Elecraft was trying to achieve that anyway. 

	http://www.steppir.com/SteppirSPE.html

	This is the 1K model. SteppIR is just the dealer. It's only rated
for 5 minutes at half power. That's probably enough for a digital QSO. SPE's
website says they have a 2K model that puts out double the power of the 1K. 

Stan Rife 
W5EWA 



-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Bob - W0GI


If the goal was a 100% duty cycle 1500W amp for $5000, then the answer why
it
wasn't produced, has been given. It's not going to happen by anyone, unless
they like losing money.

"Was going to be half of that", are two different things. The "was" part
didn't happen, and won't happen. 

Check the prices of the mosfets and power supply needed, and it will become
obvious.

Apha has the R&D money, but they haven't done a SS 1.5KW amp, because it
isn't cost effective.

Not only that, but why would anyone want an amp that would require 3 times
the money to replace mosfets, as opossed to a ceramic tube, that will take a
lot more abuse and be less prone to failure, and probably last a lifetime?

Just the way it is......