[Elecraft] [K2] Number of toroids in a K2/100

[Denis Dimick]

I'd never wound a toroid before I built my K1, however, the K1 built manual
took all the fear away from the task for me. As a matter of fact I dug out
the manual Sunday night to use it as a reference when I needed to wind some
toroids for another radio kit.

Denis
KC6AUP



--------------------------------------
There is no future until we settle our past...

On Tue, Apr 21, 2015 at 7:56 PM, Kevin Stover <kevin.stover at mediacombb.net>
wrote:

> On Tue, 21 Apr 2015 21:23:58 -0400
> Don Wilhelm <w3fpr at embarqmail.com> wrote:
>
> > Kevin,
> >
> > If you are building new kits and are intimidated by the toroids - or
> > just want to reduce the effort and have toroids with well stripped and
> > tinned leads, order the toroids from The Toroid Guy.
> >
> > If you wind your own, the big challenge is not in the winding (but
> > remember that a straight wire through the core is one turn, and a full
> > wrap around the core is 2 turns), but the challenge is in stripping and
> > tinning the leads.  I strongly recommend the 'solder blob' method - use
> > an iron with a wide tip and a higher than normal temperature (800 degF).
> >
> > One of the common problems with K2 construction is poorly stripped and
> > tinned toroid leads.
> >
> > 73,
> > Don W3FPR
>
> Thanks Don.
>
> No not building a new one just sitting back reminiscing about building
> #4684. A couple of hours every night after work and weekends. The key for
> me was to stop at a logicak spot every night so it'd be easy to pick up the
> next night.
>
> As for stripping enamel off toroid wires I started out with the pool of
> soder method but soon came up with my own. I used a small propane torch to
> burn the stuff off followed by a few swipes of fine grit emeory cloth and
> finally a good thin tinning of solder.
>
> I'll have to dig my assembly manuals out and count them up.
>
> --
> R. Kevin Stover
> AC0H
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