Re: KPA-100 D13 Diode issue
Posted by
Don Wilhelm-4 on
Apr 03, 2009; 4:05pm
URL: http://elecraft.85.s1.nabble.com/KPA-100-D13-Diode-issue-tp2581275p2581557.html
Ron,
Be certain D13 is oriented correctly.
If that is OK, then you should find the source of the low resistance.
The components beyond L16 (see schematic) could possibly be cause, so
test for that possibility by temporarily lifting one lead of L16. If
the resistance at the D13 cathode increases, you will have to look at
the other components in the T/R switch area - be certain all the diodes
are correctly oriented as your first step, and then check the
orientation of Q6 and Q7.
73,
Don W3FPR
Ron Greene wrote:
> I'm nearing completion of my new KPA100 and running the resistance tests
> (manual page 43) which are just prior to the final few steps and the
> last item on that list is diode D13 which is supposed to be >10K.
> However I get 8.5 K measured with two different meters. Every test up
> to this point has been OK. Suggestions?
>
> Ron, N8IB
>
>
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