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Re: Formula Overload or (drowning in math)

>>From tapps-at-awinc-dot-com Wed Mar 13 08:59 MST 1996
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>Date: Tue, 12 Mar 1996 22:49:06 -0900
>From: Tom Apps <tapps-at-awinc-dot-com>
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>To: "tesla-at-grendel.objinc-dot-com" <tesla-at-grendel.objinc-dot-com>
>Subject: Formula Overload or (drowning in math)
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>
>Help! I'm Confused!!
>
>After reading and sorting through lots of messages from this group and 
>the usa-tesla group, and information that I have gathered from 
>ftp://ftp.funet.fi/pub/sci/electrical/tesla/, I am confused.  The 
>formulas that Bert Pool gave and some of the tables that Richard Quick 
>gave for the resonant frequency of the secondary come out very 
>different.  I assume I am doing something wrong when doing the 
>calculations or I'm missreading  what the formulas are for.
>
>Since I have been having a bit of trouble getting my hands on used neon 
>xformers ( was able to get a 12kv 30ma so far), the power supply is 
>still up in the air, but I am still aiming for an output of around 12 to 
>15kv at 120ma.  If I have read correctly, the primary of the Tesla coil 
>would best be made from copper tubing of the inverted conical shape.  A 
>secondary coil of around 6 to 8 inches diameter, a couple of feet high, 
>with Mr. Donut on the top. I would love to get one of the commercially 
>made capacitors but by the time I could get it to Canada it would be 
>very pricey, so thats still up in the air also.
>

Tom, the formula of mine that is floating around is only for calculating the 
capacitance (in pico farads) of the torus, not the resonant frequency of the 
secondary.  

Bert