[Elecraft] KX1 still Low Power

[Ron D'Eau Claire]

Phil... look at the 40 meter transmit test on Page 59 of the Rev B =
manual.
Balancing the output on 40 and 20 meters is part of the test procedure. =
You
needed to squeeze the turns on L2 a tad.=20

Ron AC7AC
-----Original Message-----
From: Phil Wheeler [mailto:w7ox@socal.rr.com]=20
Sent: Friday, November 28, 2003 6:18 PM
To: Ron D'Eau Claire
Cc: 'Alan WB6ZQZ'; elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX1 still Low Power


I just did my initial testing and am getting a bit less out than I would
like using a dummy load and a very accurate digital qrp wattmeter (don't
recall the name of the kit I built it from).

Using 13.8 V supply, I'm getting 2.6 W on 20 m and 3.5 W on 40 m.  The =
40 m
number is OK, but I would expect more than 3 W on 20 m.  Since this is =
not
grossly off, I doubt if it relates to toroids or anything like that, =
unless
turn spacing would make for small changes.  And R4 is Full CW (I know
because I started with the other full CW -- need to understand clocks =
better
-- and had zero power out).

Looks like it is time for the "33 ohm solution" :-)

Since I don't have anything near that at hand (should have bought one on =
the
way back from my impromptu doctor visit), I will start building the =
options
tonight and do the resistor change tomorrow.=20

Very happy with RX performance, by the way.  Seems hot and the filter =
can
really get pretty sharp.  Plus really easy to tune in 20 m SSB stations =
and
the like.

73, Phil