Re: 12-20MHz Big HF VTTC 3kW. VACUUM TUBE GU-5B
ScotchTapeLord, Sat Oct 22 2011, 01:37AM

I showed those videos to a friend the other day.
She thinks your bed sheet is awesome.

Re: 12-20MHz Big HF VTTC 3kW. VACUUM TUBE GU-5B
MRacerxdl, Sat Oct 22 2011, 03:44AM

OMG, These sparks looks more flames than sparks!

Very good work! Congrats :D

Re: 12-20MHz Big HF VTTC 3kW. VACUUM TUBE GU-5B
Phillip Slawinski, Sat Oct 22 2011, 12:13PM

Excellent work! That's a very unique looking arc there! Looks like an arc you'd get from mains transformer.

Re: 12-20MHz Big HF VTTC 3kW. VACUUM TUBE GU-5B
Dr. Dark Current, Sat Oct 22 2011, 02:51PM

What do you use as a hf ground? My friend and I had some problems with the high frequency voltages travelling through mains when running similar "plasma flame" oscillators...

Re: 12-20MHz Big HF VTTC 3kW. VACUUM TUBE GU-5B
zilipoper, Sat Oct 22 2011, 03:36PM

Hi Dr. Kilovolt
it works not ground

Re: 12-20MHz Big HF VTTC 3kW. VACUUM TUBE GU-5B
Myke, Sat Oct 22 2011, 05:43PM

Ooooooo! Very nice HF flames! I've never seen a tube coil have flames that big before.
How is the secondary wound and what did you use to cover it? On the schematic, Bt is the representation of W?

Re: 12-20MHz Big HF VTTC 3kW. VACUUM TUBE GU-5B
zilipoper, Sat Oct 22 2011, 06:48PM

there high-voltage isolation coil

Re: 12-20MHz Big HF VTTC 3kW. VACUUM TUBE GU-5B
Goodchild, Sun Oct 23 2011, 07:49AM

Russians and there tubes... hehe

Very nice work. looks like one scary arc, almost like a candle, but with a really long flame!

BTW the music in the video sounds like it's from command and conquer.

Re: 12-20MHz Big HF VTTC 3kW. VACUUM TUBE GU-5B
Luceš, Sun Oct 23 2011, 01:13PM

I have seen your videos and your result are amazing!! I hope to someday fire my gu5b :D but right now its just sitting on the shelf collecting dust