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Re: Got a few questions


From: 	Stowe,Ted-SEA[SMTP:STOWT-at-perkinscoie-dot-com]
Sent: 	Saturday, September 13, 1997 7:17 PM
To: 	"'Tesla List'"; Tesla List
Subject: 	Re: Got a few questions


hi, if I were to go look for a list of stuff from local shops to make a 
moderate sized tesla coil with, what would I look for ? I see lots of sort 
of interesting looking stuff from time to time but I'm unsure if it would be 
a good item for the project or a paperweight.

thanks, Ted
 ----------
From: Tesla List
To: "'Tesla List'"
Subject: Re: Got a few questions
Date: Saturday, September 13, 1997 3:11PM



From:     DR.RESONANCE[SMTP:DR.RESONANCE-at-next-wave-dot-net]
Sent:     Saturday, September 13, 1997 10:31 AM
To:  Tesla List
Subject:  Re: Got a few questions

to: Kevin

Always run the sparkgap in parallel with your xmfr.  After the gap the cap
goes in series with the top (tapped) end of the primary of the resonance
xmfr.  If you are using wood form for your chokes, get some 2 in dia
"closet pole" and machine some 1/2-3/4 inch deep notches into which you
wind about 100 turns in each notch (1/4 in wide notch).  500-600 turns
works well.

DR.RESONANCE-at-next-wave-dot-net


>
> From:   Kevin Radtke[SMTP:umradtke-at-cc.UManitoba.CA]
> Sent:   Friday, September 12, 1997 5:00 AM
> To:     Tesla List
> Subject:     Got a few questions
>
> Hello Everyone,
>    I posted a fairly long description of my Tesla coil last week
> hoping for suggestions on improvements, but I guess the mailing was a bit

> long for anyone to read through so I'll just be a wee bit more breef this

> time.  I've just got a couple of questions.
>
> 1. Which set up is better.
>
> A) _________Cap______________
>    I               I
>    spark gap        xsfrmr
>    I________Cap_____________I
>
> B)
>    Primary____________Cap__________   
>                          I  
>                        xsfrmr
>    Primary__________spark gap_____I
>
>
>    Are the two caps in parrallel the same equivalent capacitence as
> the one in B)
>
> 2.  After burning out two 5kV transformers we read up on protection and
> installed a safety gap and two chokes like this.
>
>         100 turns of 28awg around 1/2" wooden dowel
>    ///////////|________
>            |     |               
>                  15kV 30mA transformer          
>            |     |          
>    ///////////|________|
>    
>    the gap has enough clearance so that 15kV just won't arc over.
> During operation of the coil this gap fires quit often and is really
> hurting performance of the coil.  Directing a small fan at the gap
reduced
> the number of times it will fire but has not eliminated it.  What's going

> on and how do I fix it?
>
>    Thanks in advance for any help you could give me.
>
>
> Kevin Radtke
>
>