[Elecraft] K2 control board transistor resistances

[Masleid, Michael A.]

Hi Ted,

>I find that transistors Q1 and Q2 do not present resistances as per the
>instruction manual.

I found, when I was testing my K2, that some of the resistances were =
lower
than expected.  So, I next measured the resistance of a large capacitor =
-
charging the capacitor up in the process.  Then I measured the voltage =
on
the capacitor.  It was several volts!  That means my DVM was using too =
much
voltage to read high resistance, which caused transistor junctions to
conduct.

In my case, I was able to lock the auto-ranging function on the DVM so =
that
it would not use high voltages to read large value resistances.  See how
much voltage your meter uses.  If it is more than half a volt, the meter
may be part of the problem.

73, de Michael, AB9GV