Re: [TCML] 9/30 coil - thanks

[DC Cox <resonance@xxxxxxxxxxxx>]

Hyperbarics give absolute max performance from any nst powered coil.

Use a hyperbaric sparkgap (old vac. cleaner blower motor & 2 1/2" PVC
plastic electrical "T" fitting.  Most shops will donate one free for a
"school project".  Ahemmm.

See attached plans.  Also photos in fog.

D.C. Cox




On Thu, Apr 16, 2009 at 2:40 PM, <otmaskin5@xxxxxxx> wrote:

> Just wanted to say thank you for the advice & suggestions when I was
> rebuilding my 9/30 NST coil.? This was an old coil, pretty marginally
> designed & built.? It would typically get 8" to 12" sparks.? I kept the NST
> & built everything else new around it.? It now easily produces 20" strikes
> to grounded rod and even gave me 22" & a 24" strikes.? It's been fun
> building the smaller, simpler coil.? I may even try building a blown single
> gap to replace the five-segment gap it now has...see if I can get another
> couple of inches in spark length.??
>
> Mean time,?it's nice to have a working coil available while I've got my
> 15/60 torn down for improvements.? Thanks again.? Dennis Hopkinton
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