[Elecraft] KPA100 Power Malfunction

eKotz norift at bmi.net
Mon Jun 18 23:30:44 EDT 2007


Don,

You were spot on.   The SWR Bridge diodes D16 and D17 had failed.   The 
diodes arrived today in the mail, I replaced them and my K2 is up.   
Thank you very much for your help.

73,
Ed  -  AD7GR
K2 #6050



Don Wilhelm wrote:
> Lack of power control with the KPA100 installed normally points to a 
> failure of the KPA100 wattmeter circuit.
>
> Start with replacing the 1N5711 diodes D16 and D17...
>
> If your KPA100 was working at one time and there is *any* possibility 
> that you encountered a lightning surge, then D16 and D17 are the most 
> likely suspects.


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