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

design...

>Subj:	Subject not parsed
	????	8)>>


>TE>>   Given the frequency, coil size, and number of turns, find the
>TE>>   inductance.  Then calculate the capacitance that is needed to make the
>TE>>   LC secondary circuit oscillate at the desired frequency.
>TE>    hmmmm?  Usual secondary has no capacitors, per se.  Soem model it as
>TE>    the inductance and teh stray capacitance.  Some treat it as a helical
>TE>    resonator.  The second apprach is the one i fancy, as do the Corum's.

>Your explaination of the way to go about "designing" a Tesla coil
>is excellent. How many have you made ? :-)
	none.  Scratch that.  One.  When i was about 9.  With some help.
	But i do design, i think i understand design methodology and and i
	know i understand RF.
	And i have listened ot the Corum's & Others.

>TE> Matching [the primary] to power transformer secondary is nice, but

>How would one actually achieve this ?
	I skimped that because:
		a) I dont think it significant to results
		b) I have heard it explained once, a long time ago, and not
		by someone i was sure knew what they were talking about...

	
	As i recollect, the derived an "impedance" fro the output of the power
	transformer as Vout/Iout, then matched the impedance of the Tesla
	primary plus reflected seconndary to that.  This feels odd to me.
	Dunno.  (& yes, i understand the usual cases of, for & about
	impedance matching.  This one seems odd...)

>TE>    I reccomend TC TUTOR, by the Corum brothers, runs on a PC.  There
>Where would I buy this program from ?
	High Energy Enterprises, associted with ITS had it.
	Lindsay may have had it.

>TE>    are other desing sw packages that may be of assistance.  For
>Can you give us a short list of the software thats available ?
	No.  Sorry.  There is at least one more.

>TE>    understanding Corum's Vacuum Tube Tesla Coils is good.  Poor title
>TE>    as it is about key elements of ALL coils.
>I've seen others reference this book (e.g Richard Quick). Is it
>available in "good technical book" stores or must I go to some
>specialist shop only ?
	ITS, maybe lindsay.  Not sure if it is available generally.
 
>TE>    DO not skimp on secondary wiore size.  #22 is ok.  Some do #30.  Too
>TE>    small.

>An acquaintance of mine wound a coil by winding two wires onto a
>former next to each other (these's a special term for that -
>can't remember).
	Bifilar.  Tho, in detail, that can mean something slightly different.

> When fully wound he placed the coil upright then
>let one of the ends go. In very short time he had a coil with
>neat spaced out turns ! (and a lot of useless wire at his feet) A
>layer of epoxy finished it off. He gets a 3 foot arc from 8Kv
>input. The secondary is about 4 feet high and 10 inch diameter.
	Yep.  One can use string, or anything for the "dummy" winding.

>TE>    Consider making mechanical arrangements for a tertiary coil...
>Are you talking here about a "magnifier" coil ?
	Yep.  Fergot that buzzword.