[Elecraft] Winding of T2 - K2

Mon Jan 21 14:43:11 2002

<< Does it (the winding direction of the secondary T2) matter?>>

No.  It can be wound either way.  The are no dots on the symbol for T2 on the
schematic.  Dots (as on the symbols for  T5 and T6 on the RF board) would
signify that relative sense of the windings is important.  Also, analysis of the
schematic indicates that it isn't.  I have both the windings on T2 going the
same direction.

Lou

----- Original Message -----
From: "Jeff Anderson" <[email protected]>
To: "ELECRAFT List" <[email protected]>
Sent: Monday, January 21, 2002 9:28 AM
Subject: [Elecraft] Winding of T2 - K2

> Hi All,
>
> Just when I thought I was getting the hang of this toroid stuff...
> The diagram in the manual shows that the secondary winding of this
> transformer is wound in the opposite direction of the primary winding.  It
> seems that this would require each turn of the secondary winding to cross
> over a primary winding turn, rather than fit nicely between each primary
> turn.  Is this correct?  Does it matter?
> I've looked at Gary's instructions on the web site for winding this
> transformer, and the photo shows the secondary windings fitting evenly
> between the primary windings, but I can't tell from the photo which
> direction the secondary was wound.
> How did the rest of you wind T2?  How do the windings lay on each other?
> Any help is appreciated.
>
> Thanks,
> -- Jeff Anderson  KD7PAW
> K2 #2320
>
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