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Re: More primary L needed
Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>
I took a look at your coil. Looks like a nice spun toroid on top (a
little small but still nice). Ok, well, if more C is not an option,
then my vote would be to wind a Dual-Layer Primary. This will keep
the primary small and still have the ability to achieve the L needed.
Here's a little tool if you want to contemplate the thought.
Tesla list wrote:
Original poster: "Mike Tucknott" <michael.tucknott@xxxxxxxxxx>
I`v done the calc and I`v found that I need more primary to get the
system to tune.
OK so adding more primary C is not an option also there is no room
to add an extra
turn on to the primary, so I built a small inductor out of 14 turns
of thick insulated
copper wire about 3" dia in the centre is a soft iron core made up
of ferrous rods.
This plus the primary coil give just over the required inductance.
What are peoples thoughts on this ? method and construction.
Smokin in south Oxfordshire UK