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Re: 3/4 wavelength secondaries
Hi Skip-- all,
I've been following this thread ----
I have some thoughts -- / questions---
I too ,have enjoyed great performance
of a rather arbitrairily "kludged" coil----- it fit
in a rather random way -- into the known universe :-)
It had only the wire extended from the coil as the
"top load"------------ about 26 - 28 " streamers----
This type of experience , is shared by most (if not all)
of us (coilers)----- The point being ---- It worked !! --- Now--- why ??
So we get "Hooked" --- we study-- we learn --
The top load in this case ,was ionized air - / humidity/altitude--
--- to what degree do these variables enhance / degrade
a coils performance ------- ????? ---- might best be found by first
,establishing
a base-line in a vacuum chamber .
Questions i might have regarding your (& my)
coil's operation would be along the lines of "what data am i operating on" ?
How do i measure the band of frequencies that are actually
at work in the system ? ---- how is the "Q" measured ? ( Measured / effective
resistance ) ? ---- A spark gap generates R.F. -at- ~80 ----- ~200 K.Hz --
+ harmonics ----So virtually any coil can be made to "resonate"
with this magic do-hicky-thing-a-ma-bob --- :-)
-- the band-width / voltage rise determined by "Q"-----
energy transformation --primary/secondary-at-frequency ----
determined by coupling .
The extra coil or ,third coil / resonator T.C. will , with a probability
amounting
to that of almost a certainty----- not work as a series resonant ckt.---
without
its counter-part ----"storage device"-- (toroid or whatever ) --- as
the purpose of it is to reflect the energy back down the coil ,
to then invert -at- 1/2 wave-length and directly add to the incoming energy
--- the frequency of which ---- should "fit in"
with the self ringing frequency of the coil .------
-when one is addicted to this art-form ---it's only because
he/she decided to get serious about tinkering ---- (how does it work ?) :-)
& yes --- Tesla referred to the "art" of the transmission of energy
in one of his patents
I dunno a bunch ---
But . i know it's fun ---
& I LIKE IT !!! --- --- i jus' hafta hold on to that 2+2 = 4 thing :-)
Sandy