Yes, i was thinking of using the EL2009 amp box, but the patent says:
One end of the line is short-circuited and the other end is fed with RF. power from a 1 mega cycle oscillator 'OSC capable of delivering 3—4 kw.
The "1 megacycle" will be no problem, but the 3—4 kw is, but i can start with that.
I will look into that "90º phased coil array (without caps)" part, as skimming the patent again does not show it
Itsu
Dear Itsu Do not be dismayed about the power input. The Tline is mostly reactive so the 3-4 kW should have been expressed as 3-4 kVAR. How much will show up as real resistive power depends on the eddy current coupling to the electrons as it is stated that it is this factor that will produce the resistive component. Otherwise, the TLine voltage and current are mostly out of phase, so very little real power is drawn from the source. However, do not drive directly with your sig gen or it can be destroyed as the out of phase voltage and current can get quite high. You will need a buffer amplifier that can withstand the input rise. See section 1 par 55-60 and Section 2 par 15. It is easy to build up large stored charge in the line from a small input source. You will need to take care that the source can handle the large reactive current and voltage rise as energy builds in the line. When enough RF voltage is built up in the line, at some point the tube should ionize as it would if it were close to a Tesla coil. Then the end terminals of the tube can be measured. If you work at low RF levels you may need a means to strike an arc in the tube. A series circuit comprising a DC power source current limited via a resistor applied to the tube ends and an inductor quickly sparked across the tube will usually ignite it. In sweeping the line at low input levels, I found a few resonant points, but this may be because I was lacking a few capacitors. Will run again when I have the rest of the capacitors. ---------------------------------------------------------------------------------------------------------------------------- EMdevices Good to see you here as your original idea posted recently seems very related to this. Thanks for your correction drawing. Do you have any further thoughts on this device or your original posting? Regards
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