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Re: 60" Discharge spark with Resitor.
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>