[Elecraft] 120V vs 240V

[Ron D'Eau Claire]

A better description (which I've used in the manual at the suggestion of the
design engineers) is that the KPA500 is solid state "FIXED TUNE" - which is
true of most, if not all, Ham amplifiers on  the market.

That means that it works at peak efficiency at some point in each band and
the efficiency starts to drop off above and below that frequency. It'll do
full power output across the whole range of any Amateur band, of course, but
the current demanded will rise somewhat at the limits, even feeding a 50 ohm
resistive load. 

Ron AC7AC

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of FredJensen
Sent: Wednesday, February 16, 2011 4:57 PM
To: Elecraft Reflector
Subject: Re: [Elecraft] 120V vs 240V

On 2/17/2011 12:45 AM, Lew Phelps K6LMP wrote:

Stupid question:  I was under the impression that the KPA500 was solid 
state, no-tune.  A couple of references on this long "Voltage Thread" 
have caused me to wonder.  Fact would be welcome.

73,

Fred K6DGW
Auburn CA