Hi,thanks! Here is a first video of my 833A VTTC. The sparks are quiet impressive, with only 2kV plate voltage (tube is rated for 3kV) and poor voltage doubler:
http://www.youtube.com/watch?v=4npOSPOBtX0Plate voltage is measured with electrostatic voltmeter. It only consumes arround 3-4Amps on the primary side, so I think it works very effective. Will test heavy 5,4kV plate transformer (variac regulated to 3kV) next. I think this VTTC could give 20-25" sparks @ 3kV plate voltage without staccato driver, and with staccato even more.
Regards Stefan----- Original Message ----- From: <olivaw@xxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx> Sent: Monday, January 10, 2011 10:43 PM Subject: Re: [TCML] My first VTTC using a 833A tube
On Mon, 10 Jan 2011 18:43:36 +0100, you wrote:What I don't understand is the function of the capacitor C2.It provides a low impedance ground return path for L1, the coil's primary. Without it, the only return path is through the stray capacitance of the transformer, and maybe a tiny capacitance of the rectifier diode. Without it, I'm surprised the thing oscillates at all! _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxxhttp://www.pupman.com/mailman/listinfo/tesla
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