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Re: Secondary coil form questions
snip
>
>BTW, I did wind the secondaries on my twin in opposite directions, but
>it is not necessary. A classic horizontal half wave coil's secondary is
>wound in one direction, as is the primary, and they fire from one end to
>the other just fine, right? A half wave twin coil is nothing more than a
>horizontal coil that has been split in half and stood up on end. I just
>had to mention this, I didn't see it come up in any of the posts.
>
>Happy twin coiling,
>
>Ed Wingate
>
>Ed,
Good thing you wound your coils in opposite directions or they would not
have worked as well as they do!
Think about this. In a simple half wave coil which shares a common primary,
the coil halves are, indeed, wound in opposite directions relative to the
single primary, even thought the coil is actually wound in one direction
only when viewed from any end.
With Ed's system there are two primaries which share a common tank circuit.
assuming the primarys are wound in the same relative direction, the
secondaries would have to be wound oppositely to get maximum leap between
the pair! (phasing). The bottom line is one of the major coil windings,
primary or secondary ought to be reversed to get true half wave action.
I think I'm right on this one.
Richard Hull, TCBOR