[Elecraft] K2: winding T5

Don Wilhelm w3fpr at embarqmail.com
Sun Feb 7 20:25:39 EST 2010


LS,

You have it wound correctly.  The orientation is indicated on the next 
page of the manual - Figure 6-16 shows the lead numbering, and it is 
critical.

73,
Don W3FPR

lstavenhagen wrote:
> Hi all,
>
> I'm at the point of winding T5 and have a question about whether I have it
> wound correctly. In particular, it seems like the step-down winding (the 4
> turns of green wire) can't be perfectly centered over the other winding (the
> 16 turns of red wire). I.e. if you start counting turns on the 16-turn coil
> from one side, the first pass through the core of the 4-turn winding occurs
> between winding 6 and 7. If you start counting turns from the other side,
> the first pass of the 4-turn winding occurs between windings 7 and 8.
>
> Does this sound like it's wound right? I can't see any other way to wind the
> xformer without this being the case. It's symmetrical if I turn it over -
> i.e. if I flip it, the 4-turn winding is "off" to the other side by 1.
>
> if this is wound right, does it matter which way it's installed? i.e. which
> leads are 1/2 and 3/4?
>
> The manual doesn't specify so I'm assuming it doesn't. But this is a little
> bit of a Rubik's cube type of puzzle for me I guess ;)
>
> Thanks,
> LS
>   
>   


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