[Elecraft] KPA100 Specs or Information

[Tom Hammond NØSS]

Lee, et al:

>Ok, just am curious about the KPA100.  Maybe a few questions answered here 
>from the Field Testers....

I've only had custody of my KPA100 for about 8 hours since I completed 
assembly... then had to send it to elecraft so they could beat on it a 
while... it's still out there, but here's what I recall...

>1.  Heat Transfer.  Has anyone done a keydown test to see how the heat 
>sink does.  Does it get warm, hot or what?  When does the fan kick in?

Wayne and I were testing it (over the phone) at 100W for some pretty 
lengthy key-down periods. The heatsink got hot, but that was under some 
pretty extreme  conditions.

Though I've not experienced it, I'm told tht the fan IS thermostatically 
controlled.

>2.  Does a new speaker come with the KPA100 kit?  If it does, that is cool.

Same type of speaker, but several have reported improved sound quality, 
possibly the result of a much more rigid speaker mount... the heatsink.

>3.  The "Anderson" connectors on the back?  Where do you get them?

www.powerwerx.com is a good place. There are others, I'm sure.

>Also, the rear pictures show a ...well...different kind of mounting issue 
>for those connectors.  Is that a prototype thing or reversed engineered or 
>a change of mind, or what.  I am not say its bad, but it looks "unusual."

Actually, it comes from Anderson Power Pole, I'm told. that's the way they 
provide for panel-mounting their connectors. Works well!

>4.  Has anyone put the KPA100 on RTTY or continuous duty output?

No info.

>5.  When going from 100 watts to 10 watts automatically, does the output 
>shift back to the BNC connector or does it stay with the SO239?  Stupid 
>question, but a teacher told me once there is not such thing as a stupid 
>question, just stupid answers.  How does 160 work on it?  Do you still 
>have the separate RX input?

If the KPA is connected, all RF goes thru the amp, either THRU the PA 
transistors or thru the internal by-pass relay.

When you turn the POWER control, between 0 and 10W, the KPA is not placed 
in-line. As soon as you turn the POWER control to 11W, the KPA in placed 
in-line UNLESS you turn it off with the MENU or you remove it's power.

>6.  Will the manual be up on the Web site soon?  I want to read it of course.

No info, but I'd watch for it sometime soon.

73,

Tom  N0SS