[Elecraft] KX2 Matching Power Amplifier

Thu Apr 6 11:01:20 EDT 2017

I’m hoping Elecraft will make the KXPA35 a bare-bones amplifier and leave out the band data capability to save cost.  An antenna tuner is needed, but all the other do-dads drive up the cost and pretty soon you will have a KXPA100(minus) rather than a true KX2 companion.

I’m told the KXPA100 uses an rf sensor for band switching with the KX2.

Bert N8NN

From: Irma & Linas(LY2H) [mailto:irmalinas73 at gmail.com] 
Sent: Thursday, April 6, 2017 10:35 AM
To: Ron Wilcox <rglogan73 at gmail.com>
Cc: elecraft at mailman.qth.net; n8nn at earthlink.net
Subject: Re: [Elecraft] KX2 Matching Power Amplifier

It would be a good idea if the KX2 could be modified in order to get the Band Data signal from the ACC socket, for as it is now it only provides with the Key Out signal.  I don't know though how  the Band info is arranged in the Kx2/KXPA100 combo, may be some RF sensor? 

73 Linas LY2H

On 2017 bal. 6, kt at 17:29 Ron Wilcox <rglogan73 at gmail.com <mailto:rglogan73 at gmail.com> > wrote:

qrp guys also makes a nice 50 watt amplifier that works great with the KX2, has the cable for it, comes as kit for the fun of putting it together, quality product as well

Today is a good day to have a Great Day!

73       Ron Wilcox KF7ZN

On Thu, Apr 6, 2017 at 8:18 AM, Irma & Linas(LY2H) <irmalinas73 at gmail.com <mailto:irmalinas73 at gmail.com> > wrote:

Nice idea! Before Elecraft steps-in to this PA market, I am using with
great success and pleasure the Chinese MiNiPa50,:)
AT 5-6 W in from the Kx2 it yealds clean and healthy 45-50 W output on the
80-20m bands and around 40W on higher bands. 6,6A current consumption at
13-14V. No 6 m , no ATU though. ( For the ATU I use the famous Elecrat T-1,
yes, it can stand up to 40 W , just do not tune at this power level, :)) At
the price of approx 150 USD it is very good value for money, I think.

73 de Linas LY2H

On 2017 bal. 6, kt at 16:34 Bert Garcia N8NN <n8nn at earthlink.net <mailto:n8nn at earthlink.net> > wrote:

> I'm enjoying my new KX2 transceiver!  I'd like to see Elecraft make a
> matching RF amplifier with about 35 watts output with 5 watts in.  Include
> an antenna tuner.  Same size and shape and style as the KX2.  Leave out the
> SWR/wattmeter and the antenna switch.  Use a manual bandswitch if it will
> save money.  80-10 meters only.  Call it the KXPA35.
>
> Bert N8NN
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