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Magnifier #13 and a small coil.
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From: richard hull [SMTP:rhull-at-richmond.infi-dot-net]
Sent: Wednesday, March 04, 1998 5:27 PM
To: Tesla List
Subject: Re: Magnifier #13 and a small coil.
At 11:56 AM 3/4/98 -0600, you wrote:
>
>----------
>From: Chuck Curran [SMTP:ccurran-at-execpc-dot-com]
>Sent: Tuesday, March 03, 1998 6:50 PM
>To: Tesla List
>Subject: Re: Magnifier #13 and a small coil.
>Richard:
>
>This is a real interesting project. I would like to hear how the
>primary/secondary winding technique works out as the power level goes up.
>That k=.73 is pretty impressive for us that work with two coil systems, hope
>to hear of another success with this project for you. Good Luck!
>
>Chuck Curran
>
>
>Chuck, Malcolm, Bill and others,
Thanks for the kind words regarding the recent efforts. The real key, as I
have mentioned, is to set the gap to fire well below the peak NST voltage
and then inch the variac up to where a scope shows a more or less maximum
number of firings per half cycle. Note** You can go on almost forever
upward in voltage, but there is a point on the dial where a vast increase is
needed to add one more set of firings. Do not go this high - back off. My
system, as built, hit the maximum around 43-48volts (3-4 firings per half
cycle). The next add on was at about 68 volts and the resulting spark
wasn't all that much more impressive or longer. A delicate balance indeed,
but all else has to work harmoniously with what you have.
Needless to say, the system was silent in operation except for a slight air
rushing "ssssss" sound of the multitude of microgaps firing.
Richard Hull, TCBOR