[Elecraft] mounting toroids

Wed May 1 17:42:03 2002

Sorry, it *is* difficult to explain.

I'm specifically referring to T1 & T2 on the KSB2... two toroids mounted
vertically (not flat against the board). Note the pic on pg 11 of the KSB2
assembly manual. Rotate the manual 90 degrees counterclockwise and you'll
see leads 4, 3, 2 at the 'bottom' of the core with lead 1 leaving the core
at about a 2 oclock position. I call this a 'flying' lead.

No problemo with the primary red winding... both leads leave the core in
close proximity to their respective pads... it's the secondary winding that
I'm not sure how to 'route'.

My question is, do I just bend/drop this 'flying' lead down to the
appropriate pad? Or should I rotate the toroid so that I try to 'split the
difference' for all 4 lead lengths.

> ----- Original Message -----
> From: "Mychael Morohovich / AA3WF" <[email protected]>
> To: "Mike McCoy" <[email protected]>
> Sent: Wednesday, May 01, 2002 3:40 PM
> Subject: RE: [Elecraft] mounting toroids
>
>
> > Hi, Mike-
> >
> > I'd like to help you, but am having some trouble understanding exactly
> what
> > you mean. Could you somehow reword your problem? Sorry...
> >
> > Tnx,
> >
> > Mychael
> >
> >
> > > [Original Message]
> > > From: Mike McCoy <[email protected]>
> > > To: Elecraft <[email protected]>
> >  > Date: 5/1/2002 4:31:48 PM
> > > Subject: [Elecraft] mounting toroids
> > >
> > >
> > > I'm having trouble figuring out how to properly 'route' all the leads
> > coming
> > > from toroids with secondary windings.
> > >
> > > After winding/tinning, I'm finding I end up with the primary winding
> > leads &
> > > maybe one secondary lead in a good position at the 'bottom' of the
core
> > > (e.g. close to the solder pads) but inevitably there is one secondary
> lead
> > > that ends up somewhere at the 'top' of the core (at least a good 45-60
> > > degrees around the core away from the rest of the leads).
> > >
> > > How do you route this 'rogue' wire back down to the appropriate solder
> pad
> > > without 'decoupling' that last turn from the core?
> > >
> > > Thanks,
> > > Mike - AD5IU
> > >
> > >
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> >
> >
>