Re: 60" Discharge spark with Resitor.

• To: tesla-at-pupman-dot-com
• Subject: Re: 60" Discharge spark with Resitor.
• From: "Malcolm Watts" <MALCOLM-at-directorate.wnp.ac.nz> (by way of Terry Fritz <terryf-at-verinet-dot-com>)
• Date: Mon, 07 Sep 1998 20:02:23 -0600
• Approved: terryf-at-verinet-dot-com

Hi Gary,
          What was the degree of heating for each of the three 
resistors? Were all sparks measured while striking a target or were 
they air streamers?

Thanks,
Malcolm

> Original Poster: gweaver <gweaver-at-earthlink-dot-net> 
> 
> I did an experement today with several different value resistors in the
> circuit between the neon transformer and the spark gap.  I used only one
> resistor in the circuit.  I tried 3 different resistors values.  Each run
> was 2 minutes long.  
> 
> Transformer =    15K/50ma unpotted neon in HV oil.
> Gap Type =       8-at-.025
> Total gap =     .200       
> Primary cap =   .0064 uf 
> cap type =       rolled poly HV oil filled 
> Choke value =    none
> Max output =     22" to 60"
> Primary coil =   Flat wound .250 copper tubing .250 spacing 16 turns tap at
> turn 12.
> Secondary coil = 960 turns of #24 wire on 4" pvc pipe.
> Topload =        6" copper sphere
> 
> No resistor the output is 22" long with very white hot discharge sparks.
> 
> 200 ohms 25 watts wire wound, output is 24" long, purple sparks.
> 
> 300 ohms 50 watts wire wound, output is 27" long, light purple sparks.
> 
> 430 ohms 20 watts wire wound, output is 27" long, very light purple sparks. 
<snip>

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