Magnetic Resonance Devices based on Don Smith Concepts

[xee2]

@ Peterae

Number 3 is what i am after, so i take that as a no the tails are not included in the quarter length of wire,

I am not sure what you mean by "tails". If "tails" are the leads going to the coil then it depends on how long they are. They always effect the circuit performance, but if they are less than 1/10 wavelength they can usually be ignored. I do not know what you are trying to do so I am probably not very helpful.

[stprue]

@Yucca Veerrrry nice sig gen.

[Peterae]

Nice display there Yucca for what i can imagine cost zero as it came from an old phone,a very pleasing price if i may say so 

Well i built the primary, wire length of the 5 turn coil was 85cm without tails.
Inductance = 2.41uH
Parallel Resistance = 0.5034 Ohms
Series Resistance = 0.0527 Ohms
Impedance = 0.138 Ohm
Q = 3.39
Tested @ 10khz

So with the 200nF cap he has used i would have a theoretical primary resonance of 229.243 khZ

My Secondary is going to need cutting down
but here's it's current measurements

Inductance = 16.03uH
Parallel Resistance = 21.8 Ohms
Series Resistance = 0.0473 Ohms
Impedance = 1.0062
Q = 21.36

Tested at 10khZ

So with the 47nF Don used would give me a resonant freq of 183.359khZ
which isnt far from my primary considering my secondary is at least 1turn to long in length.

Peter

[Peterae]

xee
Yer i refer to the coil leads as tails.
Thanks for the info it's handy to know this

Yucca
You mentioned before that Don seems a little mischievous in his personality having watched the videos again, i agree 100%, you get the feeling he is playing with the people asking questions, gives me the impression he likes people to at least work somethings out for themselves, i wonder if it is this that leads to the conflicting information, after all he earned his glory and put the time in on the bench, he's obviously a very clever man.

I love the way he talks about how he lost his job as a Geologist, when he was earning so much more than some of his bosses LOL


Peter

[stprue]

Great work Peterae looks just like Don's photo!