[Elecraft] Coil winding novice

[Gregg R. Lengling]

The biggest thing is stripping and tinning the leads.  I have a De-soldering
station that works very well to run the leads into the hole and strip with
heat and solder.  But you can carefully scrape the enamel off or use a very
fine grit sandpaper to strip them and then tin them very well and look for
the very thin coat of solder that tinning does.  This is probably the most
important part of the build.  Always double check them before installing
with an ohm meter to make sure you really have them tinned and there is no
resistance.  Once installed and soldered, carefully inspect the joints with
a magnify lens to make sure you have a very nice clean joint, if the wire is
sticking thru and isn't looking very soldered...it's not and may work now
but will fail later.  Once this is done, check it again with an ohm meter to
make sure everything has continuity.

Just a little patience and double checking and you'll be fine.

Gregg, W9DHI


----- Original Message ----- 
From: "Nick Henwood" <nick at henwood.demon.co.uk>
To: <elecraft at mailman.qth.net>
Sent: Friday, February 09, 2007 6:07 PM
Subject: [Elecraft] Coil winding novice


I am just starting on my K2 and feeling apprehensive about coil winding - 
never  having wound a toroidal coil.My inclination is to wind them myself 
rather than give way and buy a set. It all looks straightforward in the 
instruction manual. Would welcome encouragement or cautionary advice.
73 Nick G3RWF