With a horizontal output tube, PL 500, from an old black and white TV. 10cm long secondary, 3.5-4cm free to air streamers. Also added an interrupting circuit with a SCR. Got 6-7cm free to air streamers this way. Anode voltage comes from mains voltage multiplier, no microwave oven transformers or other trickery (the tube ain't for high power).
Small vacuum tube Tesla coil
in High Voltage Stuff
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With a horizontal output tube, PL 500, from an old black and white TV. 10cm long secondary, 3.5-4cm free to air streamers.
Also added an interrupting circuit with a SCR. Got 6-7cm free to air streamers this way. Anode voltage comes from mains voltage multiplier, no microwave oven transformers or other trickery (the tube ain't for high power).
Whatdya think? :)