Tesla Coil Conversations
by Arto Juhani Heino (c) 2014
Memories of Tesla and 1000 other coils
Arto and Fred standing in front of a Large Cylindrical Tesla Coil, in the workshop and home laboratory of Arto Heino:
Arto: “Stick your hand in at the base of that big Tesla coil and tell me if the voltage is big”, he said while grinning wryly.
Fred: “No way man, I can see the high voltage at the top, which means I might die, because it is the current that kills”, jumps back while he exclaims, being puzzled by his own instinctive understanding.
Arto: “Well said, how did you figure that out?”
Fred: “Just hanging around you, by watching how you avoid touching the primary and any part down at the base of the coil”
He looks around the workshop and sees lots of different balls sizes and some toroids, he can see that they attach to the top of the Tesla coil.
Fred: “Why have you got that ball on top?”
Arto: “To store the reactive charge into the dielectric around the ball while the dielectric component is reflected at the anti-node and will be transformed back to the magnetic component at the base which is reflected by the node, all this happens during each cycle at its natural frequency and is the due to it’s standing wave resonant structure, which relates to the length of the wire being the quarter of the wave length of its natural frequency, while also adhering to the balance of two components the inductive which is the magnetic component and the capacitive which is the dielectric component at the same frequency,”
Arto: “To simplify they act as polar opposites both have reflections at the opposite node, Magnetic/Node, Dielectric/Anti-node, so simple no complicated explanation necessary. This sort of knowledge makes theoretical and mathematical people nervous.”
Fred: “Wow that changes a my way of thinking, they never told me that at school”
Arto: “I understand, sometimes understanding something is not easy, you have to be able to fail and disappoint yourself to get past those prejudices”
Now they are standing in front of a bench with lots of coils, capacitors and power supplies:
Fred: “What’s with that other coil, there is no sparks or ball?”
Arto: “Oh that is a half-wave system, that doesn’t use a reactive transformation like the Tesla Coil. It just swaps between the Voltage/Current transform, but in a nodal resonant fashion, by the length of the wire being half the length of the wave length of its natural frequency.”
Fred points to another fancy coil on the bench:
Fred: “That one their has a ball at either end, and a thick primary in the center.”
Arto: “That is another half wave system, but this one also has capacitive reactive exchanges at either end, it acts like two Tesla coils joined at the base.”
Fred walks over and flicks the switch that is labelled “LC circuit”.
Fred: “Then what’s this other one here, it has a Capacitor and Coil, but it sparks are small”
Arto: “That is similar to the Big Tesla Coil, but it only resonates between the reactive components not the nodal structure, the wire length only relates to the amount of turns and an increase in inductance”
Fred: “Oh so you are saying that resonance can be number of exchange devices”
Fred picks up a long cylindrical neon tube and walks over to the Tesla coil:
Fred: “Check out that Neon light when you bring it to the top of the coil”
Arto: “Yes, that is the high charge density around the top capacitance, it affects the neon inside the tube and makes it fluoresce, that’s why they call it a florescent tube”
Fred: “The light is not bright down here”
Arto: “That is because the alternating magnetic component does not affect the neon in the tube, and the dielectric charge density is low just like the voltage but having said that the current density is high”
Now they are standing in front of a industrial neon light fitting, using a multimeter:
Fred: “How come when I measure the small neon transformer here it only shows 120 volts”
Arto: “That’s the voltage just to maintain the florescent activity in the tube, the ignition circuit starts the florescence and is part of the same transformer, it just creates a inductive high voltage charge when the starter switches”
“It is not hard to teach people to look but its takes a lifetime to educate those to see.” – Arto Heino
This could be my last post on WordPress, due to slow sales of my book and lack of support for my work, I will be removing 90% of my previous posts and all my new posts will be only available to patrons, sorry I gave a lot of my work for free and I can no longer continue with this blog, good luck to all the experimenters and researchers. Regards Arto.