[K2] Number of toroids in a K2/100

[Kevin Stover]

Just sitting here thinking about my K2/100 and how many toroids there are to wind. It's a relatively oaded K2 as well with DSP, SSB, 160m. I never counted them up. I built a Kat100-1 at the same time too.

--
R. Kevin Stover
AC0H
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[Don Wilhelm-4]

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

On 4/21/2015 8:20 PM, Kevin Stover wrote:
> Just sitting here thinking about my K2/100 and how many toroids there are to wind. It's a relatively oaded K2 as well with DSP, SSB, 160m. I never counted them up. I built a Kat100-1 at the same time too.
>

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[Kevin Stover]

On Tue, 21 Apr 2015 21:23:58 -0400
Don Wilhelm <[hidden email]> 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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[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 <[hidden email]>
wrote:

> On Tue, 21 Apr 2015 21:23:58 -0400
> Don Wilhelm <[hidden email]> 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
> ______________________________________________________________
> Elecraft mailing list
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>
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> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

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