Jeff
Always been impressed with your work.
Very nice coil design, no that spring has
finally arrived around here need to build a small
compact coil for experimental work. This will
give me dome inspiration for perspiration.
I have a 9kV,30mA that should work admirably
in that role ... Time to fire up the PC, MultiSim,
and my CAD package. Best...
On Sunday, March 23, 2014, Co60bishop <co60bishop@xxxxxxx> wrote:
> Nice compact design. I see you weren't concerned about the magnetic
> influence of the components under the primary/secondary. I like how you
> were able to tune the primary to resonance then screw down the connection.
>
> Allen
>
>
> -----Original Message-----
> From: Jeff Behary <jeff_behary@xxxxxxxxxxx>
> To: tesla <tesla@xxxxxxxxxx>
> Sent: Sun, Mar 23, 2014 3:22 pm
> Subject: [TCML] 28 watt Tesla Coil...
>
>
> Hello all,
> I just listed a small Tesla Coil on Ebay.
> http://www.ebay.com/itm/121302106829?ssPageName=STRK:
> MESELX:IT&_trksid=p3984.m1555.l2649
>
> Some high resolution pics are here...
> http://www.electrotherapymuseum.com/2014/BabyCoil/index.html
>
> It's much more interesting to operate a Pancake Coil at these low power
> levels,
> the effluves are much more abundant
> and extend 12" or more...but for a small cylindrical coil it is still
> useful for
> Geissler tubes and such...4" sparks and 6" effluve
> (particularly along the last wire of the secondary, in operation it forms a
> horizontal sheet of violet light).
>
> Specs are:
> 3500V 8mA NST open core & coil type, unmodified.
> (12) 690 PF doorknob caps = .00828 mfd
> (Can anyone guess what the connection plates are? :) )
> An antique Fischer spark gap, tungsten contacts .1875"
> 1" copper ribbon primary with .1875" EPDM rubber interleaves
> 3 5/8" diameter phenolic form close wound with 6.6875" of 29 AWG
> 4" copper ball terminal
> 1/2" XX Phenolic/Bakelite plates
>
> Throw a bid, you could always scrap it for the caps and spark gap ;)
>
> Jeff
>
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
--
Dave Sharpe, TCBOR/HEAS
Chesterfield, VA USA
Sharpe's Axiom of Murphy's Law
"Physics trumps opinion!"
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla