Backwards Coil

 Te> X-Sender: bhaley-at-mailhost.shore-dot-net (Unverified)
 Te> To: chip-at-grendel.objinc-dot-com (Chip Atkinson)
 Te> From: bhaley-at-shore-dot-net (Brendan Haley)

 BH> I've wound a secondary coil for use with a solid state Tesla
 BH> driver. This plan isn't working out as well as I hoped and I 
 BH> would like to try to build a spark gap type version.
 BH> My question is this:

 BH> I would like to use the secondary that I have already wound, 
 BH> and I was hoping someone could tell me how to work backwards 
 BH> to work out the values for the primary, capacitor,           
 BH> transformer, etc. Or at least, find out any hints anyone     
 BH> has. -Brendan Haley


Take a few minutes and give us the complete details of the
secondary coil you want to work with. I mean all relevant
construction details: physical coil size, coil form material,
wire type and size, number of turns, coil shape.

With the proper data any number of us can be of assistance. 
You could do the basic math yourself with a Tesla formulary,
but there is a lot of practical considerations concerning things
like the inductance per unit volume, breakdown strength, wire
resistance, etc.. Coils designed for solid state operation
frequently differ greatly from coils built for spark excited tank
circuits. Spark excited tank circuits require a heavier coil,
with less inductance per unit volume, than is typical in a design
for solid state operation.

Richard Quick

... If all else fails... Throw another megavolt across it!
___ Blue Wave/QWK v2.12