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Re: High Inductance Secondaries and DRSSTCs
Original poster: "Malcolm Watts" <m.j.watts-at-massey.ac.nz>
On 9 Sep 2004, at 7:42, Tesla list wrote:
> Original poster: "Eastern Voltage Research Corporation"
> Does anyone remember the discussions that were awhile back regarding
> high number of turn secondary coils???
> I'm currently designing my secondary coil for my "Psychosis Coil"
> which will be 48" winding length, 25 AWG, on a 12.5" Dia. coilform.
> About 2700 total turns. Total Ls of the secondary is about 440mH and
> resonant frequency of the entire secondary / toroid assembly is about
> Right now, the only bad thing about this is i will need a larger
> number of primary turns to get down to the resonant frequency I want
> (i plan on using about a 0.3 to 0.4uF primary capacitor)
> Anyone else see anything troubling with my secondary??? I can't. I
> should have probably used a larger gauge wire (maybe 22 AWG), but i
> just bought a 68 LB spool of this 25 AWG stuff.
Nothing too major but the losses won't be the lowest. The wire
diameter is barely 1 skindepth at 30kHz. It'll work.