Re: Do these numbers look right?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Richard Modistach" <hambone-at-dodo-dot-com.au> 

try your nearest industrial refrigeration\air conditioning
mechanic\engineering shop, they often have pipe on huge rolls,
tell them what it's for,
ask them nicely to handle carefuly to avoid sharp kinks.

regards
richard
aus.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, February 17, 2004 10:37 AM
Subject: Do these numbers look right?


 > Original poster: JOSEPH CACCIATORE <jocatch-at-us.ibm-dot-com>
 >
 >
 > Hello again. I am well on my way to designing my first TC after giving up
 > trying to restore my old PE magazine coil from 1964. I checked and there
 > are a slew of programs and spreadsheets written to help design a TC.
 > Unfortunately some give different results for the same input conditions.
 >
 > The program I found to be extremely helpful is an Excel spreadsheet called
 > the Tesla Coil Designer 3.0 by Ed Sonderman and Corey Ruch. It is great
 > because you can adjust the secondary/primary parameters and watch for when
 > they come in sync.
 >
 > But never trusting any program fully (i.e., Tax Deluxe say I had an extra
 > $1800 coming back on my tax return, it was wrong!), I was hoping someone
 > could verify and look at these numbers to see if the coil really will
 > perform before I spend all this time, effort and money.
 >
 > If anyone is willing, here are the specs I came up with:
 >
 > NST = 12,000v, 30ma, 60hz
 > Secondary = #22 wire, 20" long, 4" diameter, 765 turns-at-97%
 > Primary = flat spiral, I.D. = 6", 15 turns, .25" pipe, .25" spacing,
 > width=7.25"
 > Capacitor = .007uf
 > Toroid = Dmin= 4", Dmaj= 24"
 >
 > The spreadsheet says secondary res F = 257kh, primary res F = 221khz.
 >
 > My concern is if I use any larger cap, I can't get the prim/sec parameters
 > to match good enough. Also, I don't have any material for a toroid here
 > that I can look at so I assume 4" almunin flex hose but I don't know if
24"
 > is realistic. Lastly, the primary requires 53' of copper tubing. I am not
 > sure where to buy such a long length. I have seen only 25' at Home Depot.
 >
 > Thanks.
 >   JC
 >
 >
 >