"Highland Ham" wrote in message
...
Need to wind a toroid with a center-tap. Have seen this somewhere, but
can't remember where and can't find it. Anyone know how to easily wind a
tap into a toroid? Am thinking maybe put a loop at that point with a
twist in the wire to keep it from slipping back onto the toroid and
loosening the other windings. Anybody have any ideas on this?
=======================
A bi-filar winding A-a and B-b . Connect a to B (that's the centre)
Number of turns is half the total required. A and b are obviously the end
connections.
So a toroid requiring 10 turns with a centre needs 5 bi-filar turns.

Frank KN6WH / GM0CSZ

Gotcha! (I think.) So I should wind half my turns with A to a, then
connect a to B and wind the other half. Have I got that right? Or do I
Wind A to a and then wind B to b over that (not actually connecting one to
the other), using B as my CT? (When I first read this that's what I thought
you were talking about, but now am wondering...)

Thanks for help,

Dave