[Elecraft] KX1 #1727 DEAD

[Don Wilhelm]

RC,

I assume you pulled the KXAT1 out - did you remember to install the jumper?
There is little that you could have done by transmitting that should harm
the receiver, the paths are separate except through the LPF.

For your KXAT1 problem, the usual answer when you have trouble nulling the
bridge is to first look at the wattmeter bifilar transformer, and check the
orientation of the diodes.  Also check the soldering for the inductors and
capacitors, and check for solder bridges across the relay pins and
unsoldered relay pins.

73,
Don W3FPR

> -----Original Message-----
>
> Correction Gang!
> The construction of KX1 #1727
> <http://www.kc5wa.us/kx1/1727.html> went really smooth
> all the way through the build. ALL the "checks" were
> well within spec's. It was even okay after adding the
> 30m mod with superb RX  Power out was about 3watts.
> Then I built and installed the ATU during the alignment
> and test the first several checks on L0-L3, C0-C3,
> N0-N3 were okay! When I tried to calibrate the ATU
> "Nada". I noticed the PA was "HOT". So was my DL. the
> SWR reading was r9.9 Power was "P0.0". Now when
> checking the RX is dead. Audio (white noise)is there
> and strong so is side tone... Any Ideas where to look?
> RC kc5wa
>
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