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On 10/17/20 4:01 AM, mike tucknott via Tesla wrote:
Hi All
With a bipola coil would having 2 movable tap point work for changing
the coupling ?
Say the coil need 5 turns to be in tune, you could built the primary
with 10 turns and you could move the inner and outer taps points in or
out but still keeping the 5 turns needed to keep the coil in tune, the
inner and outer turns passed the tap point would be electrialy dead so
to speak.
Thoughts on this one guys.
That's a clever idea and would probably work. You're essentially
changing the size of the hole in the middle of the primary. The number
of turns would change a bit, but if you've got two movable taps that works.