Tesla's "COIL FOR ELECTRO-MAGNETS".

[Farmhand]

OK so there is only really one way I can see to directly excite the "Coil For Electro-Magnets" without an external capacitor. Same goes for the regular coil, so I will have to use a series capacitor to try to excite the regular coil to the same frequency as the series connected bifilar coil.

How to excite a regular coil to series resonance without an external capacitance of some kind, just using the coil itself ?

Series capacitors also can help with power factor I think.

When I tune a resonant output transformer/Tesla coil to a load I adjust the L/C so as to get more current to flow, the systems use parallel resonance, but when fully loaded there is no "real resonance", some loads with enough capacitance can bring the output coil into better "resonance" both increasing the voltage in the tank and the current through the load. Sooooo. They can be tuned to high idle input power and lower loaded input power or tuned to low idle input power and higher loaded input power. Both I've shown elsewhere. Not exactly on topic as the "Coil For Electro-Magnets" is just a magnet/coil, not a transformer.

..

[Farmhand]

OK so I drew these drawings, the first one shows how I think the "Coil For Electro-Magnets" can only be excited directly in one way without an external capacitor and how I think one is needed to excite the regular coil to series resonance.

The second drawing with the Tesla coils I think shows both series and parallel resonance and how to me one is the other to look at in a drawing.

The output coil if there is no load in place has the capacitor in series and in parallel with the coil. Similar with the larger coils when looked at with the terminal capacitance considered.

.. Six of one, half a dozen of the other ? Looks like.

..

[Turbo]

An electromagnet is any conductor with a current flowing through it. No kidding. Tesla includes all coils in the patent as an example of the effect of the capacitance to the inductance.

So all coils which see current are electromagnets, and the patent is about winding the coils so that when the coils are excited at the correct frequency the "effects" of self induction are cancelled, not the self induction itself, that is not cancelled only the unwanted effects of it.

..

Okay i understand this, but then what is a coil, which does not see a current ?

[conradelektro]

It is off topic, but I got accused of not testing synchro1's claim that a "synchro coil" produces electricity by just sitting there (and being connected to a capacitor via a fast diode).

Please see  these posts (on the photo of both posts you see the diode and the capacitor on the breed board):

http://www.overunity.com/13852/self-accelerating-reed-switch-magnet-spinner/msg381853/#msg381853

http://www.overunity.com/13852/self-accelerating-reed-switch-magnet-spinner/msg381897/#msg381897

Greetings, Conrad

[Turbo]

Why do people keep doing that?
And why do people keep injecting it into other topics?
Why do people want to believe?

It's better to find out.