[Elecraft] K1 Low Power on 20M band once ATU is installed...fixed!

[Don Wilhelm]

Michael,

C13 is the Transmit Offset capacitor adjustment.  It is quite possible 
that there was a bit of oxidation between the rotor and the fixed plate 
which was cleared by rotating the trimmer.

73,
Don W3FPR

On 2/27/2016 11:03 PM, N2ZDB at aol.com wrote:
> Well it is finally fixed.  When I went to listen to the signal on my 
> K3 I noticed the frequency was off around 500 Hz or so.  Tried to 
> adjust the sidetone pitch and nothing happened - test mode audio was 
> weak and frequency would not change with C13.
> I moved C13 back and forth a little and the tone came in nice and 
> strong - with a adjustable pitch.
> Re-installed ATU and now a full 5.5 Watts on 20 Meters using a 3 cell 
> Li-Po (12.2 Vdc)!
> Looks like a defective C13 or cold solder joint.
> The owner of this K1 will be happy when he hears this news!
> 73's Michael
> n2zdb