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Re: [TCML] Switching on for the first time



Steve and Pete,

Excellent looking coil !?? A 12/30 NST coil can give about 35" sparks
using a suitable static gap, and about 38" using a 120 bps sync rotary gap,
assuming optimal capacitor value.? For now you're better off optimizing
it?using a static gap which is a lot simpler.? 

?? http://futuret.110mb.com

Cheers,
John







-----Original Message-----
From: DC Cox <resonance@xxxxxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Sent: Mon, 28 Jul 2008 4:09 pm
Subject: Re: [TCML] Switching on for the first time



with NST power a hyperbaric spark gap offers the best performance.  Contact
me off-list and I will email you the plans.




2008/7/28 Stephen J. Hobley <shobley@xxxxxxxxxx>

> We did the final assemble and checks on our Tesla coil on Saturday night,
> we rolled it out into the back yard and switched it on...
>
> Nothing is as scary as that first time...
>
> And...
>
> http://www.stephenhobley.com/Tesla.jpg
>
> Nothing exploded, imploded, melted, smoked or fried...
>
> First off, a big big thank you to all the people on the list for helping us
> to get this coil going. We never would have finished the project without
> you...
>
> We were able to tease 7" sparks out of the toroid with the safety 'wand'.
> We tapped the primary on the recommendation of Teslamap - but we're not
> trying to fool ourselves that this thing is tuned. We just built the
> oscillator tuner based on the 555 chip and we're going to try and tune it
> properly.
>
> The static gap is quenched with a tough little AC blower and set to about
> 0.18 inches. After operating for about 30 seconds the tungsten electrodes
> did not see very warm at all.
>
> So after getting the tuning as perfect as we can, what should we examine
> next?
>
> * Height of the secondary from the primary?
> * Height of the toroid from the secondary
> * Spark gap distance / more quenching?
> * Addition of a rotary gap? (this is NST based, and so I'm not sure if this
> is safe...)
>
> Our setup is:
>
> Variac -> RF filter -> NST (12Kv) -> Terry Filter -> Static gap -> MMC (16
> series with 100K bleeders) -> 0.25 copper tubing primary (15 degrees 12
> turns total) -> 4" 24 gauge wire secondary (19.5 coil height) -> 12" / 3"
> spun toroid.
>
> Thanks again!
> Steve Hobley and Pete Kuhns
>
>
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
>
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