Steve:
I have been using a molded power cord with my recently acquired used K2. I
am sure the wire is 20 or smaller meaning there is likely a voltage drop. I
need to build up a power cable with larger gauge wire. Also I need to get a
connector. Does anyone know the correct Radio Shack SKU for the connector?
What gauge of wire should I use. This is for QRP version of the K2.
I'd urge you to order the plug from Elecraft. It's an Elecraft part #E620032,
describes as 2.1mm male connector.
R/S will have something which will work, BUT those they sell DO NOT protect
the inner conductor of the connector from shorting out if left to lay out on
the desktop.
The Switchcraft plugs which Elecraft sells have a slightly recessed center pin,
which is mostly protected from accidental shorts to ground. The R/S versions
are NOT so protected.
Worth getting it from Elecraft.
Regarding wire... I'd suggest you use #16 or larger, #14 if you can find some
with insulation that doesn't overwhelm the power plug.
73,
Tom Hammond N0SS
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