The something else is tinning toroid leads. This is still the number one
problem. The wire needs to be tinned all the way up to the core so when the
wire is pulled tight you are not pulling the insulation down into the pad.
There are many ways to strip and tin the wires. Just make sure you do a good
job here and you will avoid many problems.
Don Brown
KD5NDB
I agree. Although I did not have this problem with the K2, I did have an
open-circuit on a toroid lead on the HFPacker amp I just finished and had to
heat up the soldering station again.
Always always ALWAYS pull out your ohm meter after putting in toroids and test
whether you have circuit continuity. Don't test from the joint you just
soldered (the one that attached the toroid); pull out the schematic and test
from another point that you see should be connected to it. I did this
religiously all through the K2 build and had no problems whatsoever with bad
joints.
Cathy
N5WVR
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