[Prev][Next][Index][Thread]

Re: TC Critical Coupling



> Original Poster: "John H. Couture" <COUTUREJH-at-worldnet.att-dot-net> 
 
<snip>

>   Raising the secondary can be used to find the critical coupling point but
> this is self defeating because it reduces the magnetic flux linkages which
> reduces the TC output. 

Therefore, one can do better than critical coupling. Therefore, 
critical coupling does not produce an optimized coil.
QED.

Malcolm



> For optimal power output the TC must be designed
> correctly from the start in order that the secondary does not have to be
> raised to make it work at all, usually to prevent sparkovers.  
> 
>   The 830 primary amps and the 32.4 secondary amps are instantaneous peak
> amps. In my TC Notebook I show how the primary amps are found.
> 
>    Ip = Vp sqrt(Cp/Lp)
>  
>   These instantaneous amps are high and the reason the primary wiring must
> be large. Note that the magnetic flux from the primary coil is dependent on
> the turns times the amps. Using more turns as some coilers recommend would
> not help if the primary wiring was large enough for the current. In fact the
> added resistance of more turns would reduce the magnetic flux and the TC
> output.
> 
>   Thank you again for replying to my post.
> 
>   John Couture