Tesla Coil (No tank circuit or Cap's required)

• To: tesla-at-pupman-dot-com
• Subject: Tesla Coil (No tank circuit or Cap's required)
• From: "Paul Marshall" <klugmann-at-hotmail-dot-com> (by way of Terry Fritz <terryf-at-verinet-dot-com>)
• Date: Tue, 20 Oct 1998 20:11:25 -0600
• Approved: terryf-at-verinet-dot-com

I've been preparing to move my coil outside. Tonight I finished up a 
splice on 100' of 140Kv X-ray cable. Since the cable is shielded it has 
capacitance. As a matter of fact 100' of cable has about .007 uF. I had 
to test the insulation anyway so I connected the cable to a 15Kv neon. 
One live side was connected to the shielding and the other to the 
conductor. The cable passed the test. I wanted to see if I could drive a 
coil this way. I disconnected the tank circuit and connected the cable 
directly to the gap and the primary. I had to retune the coil but that 
was no surprise. It actually worked. I got 6" sparks. No tank circuit 
caps, only the x-ray cable a neon and the gap.

paul m.

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