WFC VIC

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Here is my manual pulsing circuit. It uses a 4047 in the Astable Free running mode for the gating pulse. This is fed to another 4047 set up in a complement gating mode. It delivers the Meyer’s style unipolar gated pulse from about 500hz to 11,000hz.

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A bipolar transistor, is very fast, and one of the most important characteristics is that it is a current controlled device so if well designed is easy to control the power going into it. I never succeed i actually exploded some 2 years ago, but i still have some here and will learn more and try it more. Now i have more background. The series resistor, is something i once tried but i thought was only there consuming power. Don, do you have any idea on what resistance? My guess is around or less than 1ohm... Any idea on the inductance and resistance of the coils? Thanks for that Picture. Is the first time i see it. 


I found that the smaller the diameter of the wire the faster the electrons need to travel into it. This changes a lot the induction. In the sense that if you make you coil very thick even if it don't heats up you wont induce very high speed electrons magnetism, SS wire? Greatest resistance the faster they will need to go. Any thoughts on this?


I'm thinking if my exam for physics university failed (hope not) into making electrical engineering university focused into electronics. There is a great course here 5 years, a bit expensive but seems worth. What you think guys, should i? Anyone here is an EE?

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HM,there was two TIP120 transisters under the 2n3055.One of the TIP120 was the primary coil driver and the other was part of the amplitude control.The blocking diode is between the blue and red coils on the right side.That would be the secondary and choke.The blue box on the bottom is a female connector.A PLL board plugged into that socket.The serial connector would be for the voltage amplitude hook up.
The four studs are the power in and pulses out to primary coil.Q5-Q9 are not on this coil pack,they would be on their own board.
All coils were the same size 29-30.Iv'e stated that before.I used that for my primary and 35 for secondary and chokes.It allows me to have more turns on them with the same size bobbins.I dont know the resistance or inductance of these coils.Can't help you there.The resistors were all tied together as one.They seemed to be across the feedback winding.
Remember that these coils were hand wound,and not at all precision.I don't think that their sizes make much difference.It only makes more or less voltage,and changes the resonance frequency
Don.

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Thanks DynoDon, just wanted to make sure on the wire size. Mine is really a pain to disassemble and rewind.
In his Figure 5 diagram he had a diode across the primary coil. I have done this for relays to suppress spikes, but when I add one to my driver circuit it raises the amps and everything heats up (and yes I checked the polarity). Did you see any such animal on the coil pack?

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I had the same results as you with the diode across the primary coil,so I took it out as well.I'm not sure if there was one in Stans setup.It wasn't on the coil pack.
Don

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The diode is for BEMF, to allow flow without putting strain on your switch/mosfet/gate. While your interpretation of Meyers transformer is very nice, i do believe that it says "torodial" or "torid" at the primary on his schematic (I could be wrong there is about 8 patents with the same basic outlay, not all of them his).

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Stans first VIC coil did  call for a torid core.But as you can see from my pic.their U cores
Don

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Don, do you have more info on the steam resonator?
I think this will proof the work by voltage concept best.