Message -
From: Don Wilhelm [EMAIL PROTECTED]
To: Mike Geddes [EMAIL PROTECTED]
Cc: Elecraft elecraft@mailman.qth.net
Sent: Monday, June 11, 2007 8:56 AM
Subject: Re: [Elecraft] Strange KPA100 behavior
Mike,
Is the K2 displaying 165 watts? Or is the K2 displaying 0.2 watts or
lower
Mike,
Fine, and thanks for clarifying that you do have the latest level KPA100.
The fact that you have lower than expected resistances at R26 and R27
suggest that you may have something wrong with U5 (it could be damaged).
Initially, you should make the DC voltage measurements on U5 and U6
Greetings. I recently finished my K2 KPA100 kit. It seemed to work okay
initially, then last night started to exhibit some strange behavior. It
would transmit correct power on tune under 11 watts (and show low SWR), but
on anything over 11 watts, on tune, it would transmit around 165 watts and
-
From: Don Wilhelm [EMAIL PROTECTED]
Date: Monday, June 11, 2007 8:57 am
Subject: Re: [Elecraft] Strange KPA100 behavior
To: Mike Geddes [EMAIL PROTECTED]
Cc: Elecraft elecraft@mailman.qth.net
Mike,
Is the K2 displaying 165 watts? Or is the K2 displaying 0.2 watts
or
lower while
Mike,
If you are certain you had the red toroid cores (not any blue ones) then
you have the older KPA100 T/R switch design - it must have been shipped
before mid-Nov 2006. You do not have to check C31 with the red toroid
KPA100.
Do check to see if the KPA100 is displaying low power - you
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