Kapanadze and other FE discussion

[stivep]

step 3.aaa measuring of real
Tesla  coil structure with VNA
<sub>Note: Attenuator is needed , but:
a. it is good to measure output voltage of your VNA
    or check what is the voltage it in manual.
b. Than prior to use VNA, connect tracking generator from your spectrum analyzer  or any sweep generator
    to primary of Tesla coil and at secondary connect your oscilloscope.
c. find frequency that has maximum amplitude on your oscilloscope.

d. based on this measurement you will know already  a lot about  your Tesla coil and you may not need  VNA.
    Voltage present in secondary of  Tesla coil will allow you to  get proper  attenuation required  by manual of your VNA. 
e. generator of  your working prototype should be tuned to red region of frequency generation</sub>

Wesley

[stivep]

VNA

Some  of the VNA have been made for production line of X-tal
crystal oscillators.
And they have build in more tools to
measure  resonators and  resonating  circuits.

Tesla coil is:
- air transformer
- resonant transformer
- can act as filter

Assembly made of coils and capacitors can be treated as  one DUT
(Device Under Test )with single input and output.example of possible measurements is listed below:

Conclusion.
That what was taking months  and years now can be done in few minutes.
Most of you are happened to dig in the dark  for years, and VNA is your pair of glasses.
But you need some flashlight too.
I do really try, to provide it for you guys

Device made by you,  has one purpose, and that is Electrical Energy for Free
Such  a devices are exotic as:
- scientific base of energy origin is questionable.
_{Note:Wesley provided  explanation, in this  part of forum.}
- prior art  exists  mostly in form of unexplained pieces of information
- any device that is made for any purpose must be replicable (able to be copied or reproduced exactly.)

_{Note: on the picture below
  -any time crystal resonator is used for our purpose you can use word  filter
   and Tesla Coil can  be our filter .
  That will analyzed in  next  post.}

[mkjekyll]

Wesley,

Yes yes the VNA is better than graph paper and a a scope and mush guessing in the dark from all the interactions of RF.  OK I ordered old HP for few hundred bucks, hope it gets here and works, of course it will not be aligned so next I must ask do you think it is necessary to have the alignment kit or to just to rent ?   This unit supposedly goes from DC to 2 gHz and i don't plane on working more than a few mHz aside from that old 300 mHz battery we discussed if I ever get back to it.

Also a large expense are the probes, what does one need to work up to a few mHz besides some very good coax and connectors for the DUT?  I have heard that using the BNC to SMA adapters and some premade SMA cables can work pretty well, your thoughts?

Thanks,
Mick

[mkjekyll]

Wesley,
As always digesting the very good info you post and the Smith tube video is super cool!   Thanks for all the charts and explanations.

Hey someone obviously wants you around.

Can I ask what it was you did in professional life, or is this too personal? 

Thanks again,
Mick

[stivep]

Thank you for kind words.
Before you pay for VNA or NA.
some pros and cones.

https://www.youtube.com/watch?v=LN9PKKdFibo
note:
-Calibration kit can be any.
-look  at second picture.


some additional literature:
http://www.rfwireless-world.com/Terminology/S-Parameters-Scattering-parameter.html
http://www.antenna-theory.com/definitions/sparameters.php

Question is:
Do you need S parameter?
No you do not need S parameter but is good to have it.
And that  gives you a lot of room to hunt for used VNA or NA that is  not compromised  like  VNA from video.


Wesley