| English term or phrase: kicking coil | What is unique about it, outside of the high price tag, is that it uses a "kicking coil" instead of the usual step-up transformer to power it. For more on kicking coils, see "High Frequency Apparatus" by Thomas Stanley Curtis, published by Lindsay Publications. There is a whole chapter devoted to kicking coil apparatus.
As you can see by the web site photo, it produces a fairly wimpy output. I was just wondering if anyone has added a toroid and more primary turns to see if the output could be beefed-up some?
Anyway, it might be a consideration for someone's first coil to experiment with. The primary circuit is all at line voltage, which can kill but is safer than NSTs or pole pigs for beginners.
For those wondering what on earth a "kicking coil" is, basically it is an iron core coil, such as an ordinary relay coil, and a vibrating set of contact points (such as normally closed contacts on a relay). It works just like an old style electromechanical buzzer or doorbell. Basically, it is an induction coil without a secondary. The voltage step-up is the result of the inductive "kick" as the magnetic field collapses when the points open. |
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