[Elecraft] K3 Assembly Resistance Check is low

[Brian F. Wruble]

My K3 fails the test on page 45 of the assembly manual.  The resistance
from a pin on U12 to ground is 447 ohms.  One of you asked a question ...
was the reading the same with the leads reversed?  The answer is no, that
reading is about 4.5 kohms, and it acts like the meter is charging a
capacitor in that direction.  It takes a long time for the meter reading to
settle down.

I put a fresh battery in the Fluke DMM, and I also tested a batch of 5%
tolerance 1/4 watt carbon resistors I had.  They all read a little low,
none read high, but none were low outside the 5% tolerance.

So, my reading of U12 to ground is 10% low.  The manual is pretty clear
that the resistance must be >500 ohms.

What is my next step?

Thanks.

Brian W3BW


*Brian F. Wruble, C.F.A.

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