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Posted by Linas on Thursday 24 July 2014 - 20:58:33
I'd say if the topload is highly conductive, the Q will not drop that much. On my 7kW CW SSTC the toroid made from aluminum ducting got warm, dissipat...
Posted by Linas on Thursday 24 July 2014 - 20:58:33
The donut (toroid) shape is best. It encourages the sparks to travel outwards away from the coil. With a sphere, they tend to go downwards and strike ...
Posted by waicool20 on Tuesday 22 July 2014 - 08:51:18
...ired for resonance, Standard 1/4" Cu Tube )
-Toroid: 5 inch minor, 14 inch major ( Used the cheap method of buying some Al air duct and using con...
Posted by bob800 on Sunday 20 July 2014 - 05:04:42
... is ok as well, but as others have pointed out, a toroid shape usually gives better electric field control. If I was building a spherical DRSSTC toplo...
...d to use relatively big toriod. My theory is that toroid stabilizes and even "pushes" streamer up by it's E-field, so the bigger toriod the better res...
...igger, it gradually adds more surface area to the toroid side of the capacitor, lowering the resonant frequency. This should be observable as a gradua...
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