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Re: Tuning Troubles
Original poster: "Malcolm Watts by way of Terry Fritz <teslalist-at-qwest-dot-net>" <m.j.watts-at-massey.ac.nz>
On 25 May 2003, at 23:02, Tesla list wrote:
> Original poster: "WIZZARD . by way of Terry Fritz <teslalist-at-qwest-dot-net>"
<pbobyk-at-hotmail-dot-com>
>
> I get 24" sparks to a sharpened ground rod horizontal to the torid.
> I am sure that I can do better with the components I am using, I am just at
> a standstill and could use your input. Any Suggestions?
>
> The resonant frequency of my secondary, by itself, measures -at- 200 KHz with
> a frequency generator and scope. Once I assembled everything together I
> measured the secondary with respect to the primary to see if they were the
> same, ( in tune ) and found the secondary frequency shifted to 160 KHz.
> Should I still concentrate on tuning to the "uncoupled" resonant frequency
> of 200 KHz?
How did you measure the frequency of the secondary? You didn't
connect the scope directly to the top by any chance?
Malcolm
> My spark gap is made of eight spark plugs in series with a vaccum moving
> air past each spark point very quickly. ( WIZZARD'z Gap )
>
> My RF ground is 1/2" re-bar 3' into the earth.
>
> Here is my Data;
>
> Primary Transformer Output Voltage (VAC)
> 15000.0000
> Primary Transformer Rated Current (AMP)
> 0.0600
> Primary Transformer Input Frequency (HZ)
> 60.0000
> Primary Transformer Input Voltage (VAC)
> 120.0000
> Primary Coil Inside Diameter (IN)
> 4.5000
> Primary Coil Wire Diameter (IN)
> 0.3100
> Primary Coil Wire Spacing (IN)
> 0.2500
> Primary Coil Number of Turns
> 14.3000
> Primary Coil Angle From Horizontal Plane (DEGREES)
> 15.0000
> Secondary Wire Diameter (IN)
> 0.0179
> Secondary Coil Total Outside Diameter (IN)
> 3.5400
> Length of Secondary Wire (FT)
> 27.1000
> Secondary Wire Gauge
> 25.0000
> Secondary Turns/Inch
> 53.0726
> Top Load Capacitance (PF)
> 20.4775
> Sphere Radius/Toroid Tube Diameter (IN)
> 4.4000
> Toroid Diameter Tube Center-to-Center (IN)
> 14.2500
>
> I'm sorry I don't have a web site to post my photos :-(
>
> http://hot-streamer-dot-com/temp/MAY-22-2003-First%20Sparks.jpg
>
> http://hot-streamer-dot-com/temp/May-3-2003-WizzardzSparkGap.jpg
>
> http://hot-streamer-dot-com/temp/WizzardsTeslaCoil.jpg
>
> http://hot-streamer-dot-com/temp/WizzardsVARIAC.jpg
>
> WIZZARD
>
>
>