Tesla Coil Introductory Experiments Part 1 - Finding the quarter-wave frequency of a coil.

How to find the resonant frequency of an air-core coil using an oscilloscope and function generator.

The experiment only uses one wire so it's more like a "cir" than a circuit (lol).

(Split into 2 parts because it was starting to get long)

[theodorpali]

Thank you for making the video. Basic coil resonant frequency determination. Waiting for more.

[bobdole]

Great work! This is very informative, I will be keeping close watch.

[Racx.]

I have a test I would love for you to run if we can get in contact and talk about it!

[optroncordian]

Not a valid measurement. Coils have inductance, not resonant frequency. A system of a coil and a capacitor has a resonant frequency.
In your setup, the air gap between the coil and the probe acts as a capacitor and gives you a particular resonant frequency. No use, because, if you change the setup, you change the frequency.
You must have the whole system assembled and then you can scan for it's particular resonant frequency.
Besides, most blocking oscillators automatically generate at the natural resonant frequency of the system, so you might not need to search for it.