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Re: [TCML] Glass Plate Capacitor

I am intrigued by this design.
Do you remember which book that was?

> -----Original Message-----
> From: Tesla [mailto:tesla-bounces@xxxxxxxxxx] On Behalf Of b alex
> pettit jr via Tesla
> Sent: Monday, April 13, 2015 5:59 AM
> To: tesla@xxxxxxxxxx
> Subject: [TCML] Glass Plate Capacitor
> Hello All,
> I have been in the process of getting an old build operational again.I
> constructed this RSGTC back in the mid '80s based on info from a book
> published in 1920.  It is of classic design in thatthe Secondary is
> wide and short  by current day designs ( 8" dia x 15" hi ) and has no
> top load - just a small 1"  brass ball on a short post. It creates a
> very large brush discharge from the top turn and equal length sparks
> from the ball.It looks like a true antique as the components have
> nicely finished wood bases and boxes.
> It was built using a surplus military grade 5KV 90 ma transformer and
> is throttled by a tapped inductor of my design on the AC input.
> Thecapacitor is a 2" stack of  'single strength' window glass and
> aluminum foil whichwas immersed in hot beeswax such that the edges of
> the glasspanes are sealed ..  The foil comes to within 1/2" of the
> edges of the glass.
> The cap measures  0.025 uF.  Input 5KV max.  ARSG runs at 360 BpS. The
> coil resonance measures 290 KHz and this agrees with the JavaTC
> analysis. Coupling 0.3 k I have Never attempted full power operation as
> there were always pri to sec arc-overs.I finally fixed this ( after 30
> years !  ) by sleeving the upper turn of the primary with plastic
> tubing.
> Question : Whats the probability that the Capacitor withstand full 5 KV
> transformer output ?
> Regards,AlexOrlando FLKK4VB
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