[TCML] 1 Mhz ,1 kw

[jimlux]

Dex Dexter wrote:
> 
> I'm considering making a very high frequency (spark gap type) coil with decent power level.
> Resonant frequency at least 1 Mhz and power input about 1000 W.
> Can someone give me advice and recommend design parameters for this?
> Thanks.
> 

Tough at that power level with a spark gap. Run some numbers with the 
spreadsheet or JavaTC and see what kinds of primary L&C.  You'll need 
small L and small C to get to 1 MHz fres.  But, you also need high 
energy per bang to get your kilowatt. That means high voltage on the C 
(1/2 C V^2) which makes all kinds of design trouble with insulation and 
corona.

Losses will also be higher (both in dielectric and IR losses, because 
skin depth is small).

There's a reason why folks use big tubes for kW power levels at MHz 
frequencies.