Selfrunning cold electricity circuit from Dr.Stiffler

[duff]

You can get the wire sizes and dimensions off the AirDuct Site.

AirDux Air Wound Coils: http://www.airdux.com/


Cheaper to make: http://www.eham.net/articles/23124

[k4zep]

Great Work Ben. Thanks for sharing your experiments. 

I really would like to replicate your particular coil setup.
I listened to your videos and think I heard you say "air duct bmw 2 inch coils, 25 turns".

What sort of wire are you using ? (Aluminium ? Insulated? Sorry, I couldn't tell from the video).
How thick is it? (gauge ?)
Where might I search to source some of it?

Thanks in advance if you choose to answer my query and for any further information regarding coil construction.

Oh, and the face was a hoot 

Cheers from hoptoad,  ....... KneeDeep

Morning HopToad,

I have had a coil laying around for several years that was just available.  It is a B&W Airdux  "TZ" 1608TL, 2" diameter, 8 turns/inch, total of 80 turns. I think it is copper with silver coating.  A VERY nice coil. 

http://www.bwantennas.com/coils/coilcat.htm

Very expensive but I got it off Ebay years ago for less than $10.00.

I then cut it into 3 equal sections of 25 turns each, 17.01uh. but believe it or not, had to tweak them for matching as far as self resonance frequency.  TRY EBAY, there is always a lot of Air Dux, mini inductor, roller inductor as search perimeters.  I am certain a nice coil, hand wound on an insulated form would work just fine as in Dr. Stiffler's L3 coils.  Just remember they HAVE TO BE MATCHED in a active self resonance test.  Hope this helps.

Respectfully
Ben K4ZEP

[ramset]

Ben,
You are most definately a "master"!I cannot imagine the patience you must have,
Thank you for sharing your skills and hard work with us!
Boy I hope you get the "Loop"!

From "the edge of the chair"
Chet

[hoptoad]

You can get the wire sizes and dimensions off the AirDuct Site.
AirDux Air Wound Coils: http://www.airdux.com/
Cheaper to make: http://www.eham.net/articles/23124

Thanks Duff, ...

Morning HopToad,
I have had a coil laying around for several years that was just available.  It is a B&W Airdux  "TZ" 1608TL, 2" diameter, 8 turns/inch, total of 80 turns. I think it is copper with silver coating.  A VERY nice coil. 
http://www.bwantennas.com/coils/coilcat.htm
Very expensive but I got it off Ebay years ago for less than $10.00.
I then cut it into 3 equal sections of 25 turns each, 17.01uh. but believe it or not, had to tweak them for matching as far as self resonance frequency.  TRY EBAY, there is always a lot of Air Dux, mini inductor, roller inductor as search perimeters.  I am certain a nice coil, hand wound on an insulated form would work just fine as in Dr. Stiffler's L3 coils.  Just remember they HAVE TO BE MATCHED in a active self resonance test.  Hope this helps.

Respectfully
Ben K4ZEP

And Thanks Ben .... the info is greatly appreciated.

Now to leap where no toad has leapt before! And hopefully, not just E'Bay 

Cheers

[k4zep]

Thanks Duff, ...

And Thanks Ben .... the info is greatly appreciated.

Now to leap where no toad has leapt before! And hopefully, not just E'Bay 

Cheers

Hi Gang,

Just remember I used the manufactured coil material for a quick test as I had it laying around in the junk box.  Little did I realize that "Quick" is not part of experimental electronics..... A very nice hand wound coil on good low loss material is just as good if not better. Remember that Dr. Stiffler has a reason for EVERYTHING that he does, emulate it in physical construction and you won't go wrong!

Respect to all

Ben