[Elecraft] K1 no power out -- cont'd

Cathy James prjames at mindspring.com
Thu Feb 15 21:32:35 EST 2007


Thank you for the advice so far.  Unfortunately, the problem is deeper 
than just filter adjustment.  I tried tweaking the filters back and 
forth quite a bit on 30M without getting any stir out of the external 
wattmeter.

I am now on page 6 of the K1 manual.  Under "Transmitter Signal 
Tracing", the following voltages were seen with the scope.  Note that 
most of them seem to be DC, not waveforms.

PRE   0V
ATTN   0.1V
OSC   5V
MIX   0.5V
BUF 8V
TR1   7V
BPF ~3 or 4V
TR2   2V
TR3   0.7V
DRV   0.1V
PA   < 0.1V
ANT   < 0.1V
RFD   0.15V

My scope may not be well-calibrated, so don't read excessive precision 
into these numbers.  But they are WAY off the manual guidelines.

Cathy
N5WVR




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