Magnetic Resonance Devices based on Don Smith Concepts

[Peterae]

Hi xee
I am trying to replicate Don's device, without the caps the resonant freq will be much higher than 1mhz.
I thought Don was aiming for primary to be a quarter wavelength of the secondary coil, are you saying this is not so.

Peter

[Peterae]

OK i have found where Don says the primary needs to be an even division of the secondary wire length so it doesn't need to be a quarter, so my question is does this include the tails.
In Don's device i am building the primary has quiet long tails.

Peter

[forest]

Hmm..I thought that Don explains it well in videos. Instead I saw video in which he talks about making secondary 4 times longer then primary and that will be almost enough to catch resonance. Strange...
I have a strange feelings that we are mislead here.
If there is any simple way to catch resonant frequency by comparing primary and secondary length I can imagine only one, but completely different to what was told. I will make secondary 4 times shorter then primary (or in other words: primary 4 times longer then secondary) then match frequency of primary by selecting wavelength the same as primary length (full stationary wavelength on primary). That would accomplish resonance on primary very simple and secondary already would be 1/4 wavelength long.
The only task remain is to choose capacitor on secondary.

The only problem is that the described engineering task is in reverse to what Don Smith told us.
OR MAYBE we should choose other way and match wire length of PRIMARY to 1/4 wavelength and secondary to FULL wavelength

[forest]

Does somebody has schematics of neon tube transformer Smith is using and for dimmer for neon tube transformer ? How does it change frequency of input current to neon sign transformer ?

[Peterae]

OK i'm getting confused now, isn't a Tesla coil secondary a lot longer than the primary.

Definatley in Don's case the primary is a lot shorter than the secondary as is a tesla coil.

By dimming the input supply to the Neon transformer you alter the output voltage of the Neon transformer and therefore how fast the gap fires.

What i am trying to work out is, are the tails included in the division ratio of primary to secondary, so are the tails an active part, bearing in mind the primary resonant cap is connected to the end of the tails.