Re: [TCML] Table Top Tesla Coil

[mddeming@xxxxxxx]

Hi Amir,


So far, your numbers look good. However, you have said nothing about the dimensions of your primary coil. Since from the information you've given, your secondary resonant frequency will be near 390 KHz, to balance the primary will need to be about 3.33 uHy giving you the resonant frequency near 390 kHz


Matt D



-----Original Message-----
From: Amir Mojarradi <ln2guy42@xxxxxxx>
To: tesla <tesla@xxxxxxxxxx>
Sent: Sun, Jul 14, 2013 7:19 pm
Subject: [TCML] Table Top Tesla Coil


Hi everyone! 


I would love to hear your thoughts on the table top sized Tesla coil I am in the 
process of building. Specifically, I was wondering if I have chosen optimal 
values for the primary capacitance and dimensions for the top load. 


Any other comments on improving the design would be incredibly appreciated.


Here are the specifications:




Power Supply: 5,000 Volt, 60ma Neon Sign Transformer (with safety gap and Terry 
Filter)


Secondary Diameter: 2.5 inches (acrylic tubing)
Secondary Wire Gauge: 29
Secondary Winding Length: 11 inches
Secondary # of Turns: 900
Secondary Self Capacitance: 4.5 pF


Primary Capacitance: 0.0499 uF @ 12,000 volts (MMC of (12) Cornell-Dubillier 
942C20P15K-F 0.01 uF 2,000 volt capacitors; 2 parallel strings of 6 in series) 


Top Load: 8 inch diameter stainless steel sphere (11.4 pF) 


Spark Gap: (2) 1/8 inch diameter Tungsten Electrodes




Thank you so much for your help!


Amir Mojarradi
Los Angeles, California








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