Lou,
These early amp prototypes were a real learning experience for us. Our
staff did an excellent job, and they worked very well. However, after
sizing up the costs and risks, we decided to enter the market with
something smaller (K3-size) featuring a zero-noise (linear) power
supply based on a toroidal transformer. 500-600 W seemed like an ideal
target, and there you have it: the KPA500.
I certainly wouldn't rule out other amps in the future.
Speaking of which, the upcoming KXPA100, our 100-W amp for the KX3 and
other QRP rigs, draws extensively from the KPA500 design. We hope it
will be the best-performing and most rugged 100-W-class amplifier
available.
73,
Wayne
N6KR
On Dec 6, 2012, at 7:32 PM, W0FK wrote:
Scott Manthe-2 wrote
They showed a KPA1500 along with the KPA800 at Dayton in 2006. I was
lucky enough to see them and they were quite impressive.
It was pretty sweet in person, but pics are still out there. See
http://www.n6ie.com/Elecraft.html
I was talking to Wayne at Dayton this past April, and asked about a
higher
power amp. I doubt we'll ever see one, but at least he didn't
forclose the
idea. It would be nice to have a 1500 watt RF deck in a K3-sized
case, and a
PS in a second case.
73,
Lou, W0FK
-----
St. Louis, MO
K3 #2513, P3 #620, KX3 #0036
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