Re: [TCML] Re: The current recordholders?

[Quarkster <quarkster@xxxxxxx>]

Greg -

Your planned upgrades to the 12L50K coil sound like a logical and practical path to increase input power.

After these changes are implemented, do you think that re-tuning the coil to achieve a greater differential between the resonant frequency of the primary and secondary circuits might allow the coil to match (or even surpass) the 78 foot streamers that DC Cox's Australian coil is now generating?

Best Regards,
Herr Zapp

--- On Fri, 5/15/09, Greg Leyh <lod@xxxxxxxxxxx> wrote:
From: Greg Leyh <lod@xxxxxxxxxxx>
Subject: [TCML] Re: The current recordholders?
To: tesla@xxxxxxxxxx
Date: Friday, May 15, 2009, 2:08 PM

Currently, I'm planning a major power upgrade to the existing 120L50K
experimental coil shown here:
http://www.lightninglab.org/Projects/120L50K/120L50K.html

The plan is as follows:
A)  Replace the 3-phase DC resonant charger with a single-phase xfmr using
resistive ballasts.

B) Change out the pulse caps in the primary for high-ESR filter caps.

C) Add lossy magnetic core material around the primary conductors.

D) Decrease the bleed resistor value to 2500ohm, on the 26kV line.

E) Increase the rotary gap break rate to 900 BPS.

After these changes the power draw should increase to well over 300 kilowatts,
making this the most powerful coil in the world. The arc length performance
shouldn't be noticably affected.

-GL


Jeff Wrote:


> 
> The 13M by Bill Wysock made verified 55' arcs - point to point -
photographed and measured by 3rd parties.
> 
> Greg will probably comment soon on the 55-60' claim.
> 
> The two China coils are fiberglass versions of the 13M and with the vastly
improved gap design should exceed 60' each. The coils MAY be run someday
(not by us - we are DONE with that client). 150kW each
> 
> Jeff
> 
> 
> ----- Original Message ----- 
>> > Did the Chinese ever spin that coil up [for the Olympics] after
treated
>> > Jeff so shabbily?
>> >
>> > -- thanks, Dave
>> >
>> > In a message dated 5/14/2009 5:37:35 A.M. Mountain Daylight Time,
>> > resonance@xxxxxxxxxxxx writes:
>> >
>> > The  Electrum coil was producing 55 to 60 ft long sparks at 130
kVA.
>> >
>> > I have  a large one in Australia, running at 150 kVA, class RSG
type, 8 ft
>> > dia x 42  ft tall, produces 78 ft sparks.
>> >
>> > Jeff P.'s large coil I think runs at  200 kVA and produces
120 ft long
>> > sparks
>> > (the China coil).  I don't  know if they set it up and tested
it prior to
>> > shipping or not.
>> >
>> > Dr.  Resonance


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