[Elecraft] KPA100 - Q2 resistance check error - Problem?

[Don Wilhelm]

Kieth,

Since the base circuit for Q1 and Q2 is quite symmetrical, there is no
reason to have a different resistance reading on one as opposed to the
other.  Neither Q1 nor Q2 should conduct with a resistance check, you should
be measuring the resistance of the other circuit elements and not the health
of either Q1 or Q2.

Ron can speak better than I for the reason the values are listed
differently, but I do suspect it was an oversight.

73,
Don W3FPR


> -----Original Message-----
>
> I'm building a Rev D KPA100.  During the final resistance checks
> (p.43) I got 11.5 ohms for both Q1 base and Q2 base.  The manual
> 11-16 ohms for Q1 and 12-16 ohms for Q2.  So Q1 is OK but Q2 is
> out of spec?
>
> This resistance table was changed by the eratta.  Before that it
> said 12-16 for both transistors.  I'm thinking this is a
> documentation error and it should say 11-16 for both but before I
> apply power I figured I should check.
>
>
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