[Elecraft] Help with Sick K3 no output power on the lower bands

[Bill OMara via Elecraft]

Hi,

 

I'm looking for some ideas on why my K3 has an intermittent power output
problem only on the lower bands,

 

10,15,20M all work fine and never have a problem.  But 40,80 and 160M has no
output power.

 

I'm keying with both CW and with the Tune button into a dummy load with no
other accessories attached.

 

Sometimes it does work on all bands with full output (100 watts) obtained.

 

But you never know if it going to work or not.

 

Thanks for everyone's thoughts and suggestions in advance.

 

73 Bill   W4RM

 

 

 

Please use W4RM at AOL.COM <mailto:W4RM at AOL.COM>  as my primary account