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Old 15th Nov 2017, 8:32 pm   #118
Al (astral highway)
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Join Date: Nov 2006
Location: London, UK.
Posts: 3,496
Default Re: Design-and-building a large valve Tesla coil (class C, Armstrong oscillator).

Hey Richard, I feel happy that you can see the fruits of your labour in action!
You really did an amazing job.

I was able to re-use the stock that you put in to the ends to turn the piece - they're back to back at the base, one inverted and partially inside the pipe and the other turned upside down. They're glued together and when cured, I can plug the whole unit into a base and unplug it as I wish, for transport, exhibition (eventually) and storage.

I've permanently attached a thick, strain-relieved ground wire to the base (high RF currents) and a copper corona-guard with the other lead-out wire soldered at the top. You can just about make this out in the photo.

How did you apply the varnish so absolutely immaculately without even the slightest run? I can do this on a flat surface but I would struggle with a tube...

Were you slowly turning the lather at the time?

Anyway, beaut job. Thank you again. Stay tuned and I hope you'll be seeing full power before New Year!
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