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Re: microwave trans

Subject: 
        Re: microwave trans
  Date: 
        Thu, 03 Apr 1997 12:45:35 +0300
  From: 
        Kenneth Aaron <kennetha-at-geocities-dot-com>
    To: 
        Tesla List <tesla-at-pupman-dot-com>

>
>Kenneth wrote:
>
>>can you give me more info on teh inductive balast you built. this
>>could be a solution to my problem. so far i have 2 transformers, one
>>600w at
>?2000v and the other 1200w at 2000v. if i put in two more (i don't 
>>know the voltage because i havent got them yet) your
>>coil might limit the current and give the 8000+ volts i need.
>>how did you build it ? a large coil in series to the 220v ?<
>
>I'm also trying out microwave transformers.
>I've been using a 5500v 350mA dry transformer that I have,
>one end to ground and then a 2000v 800W microwave transformer.
>I'm using a 2kw convector heater in series with the mains
>as current limiting. The microwaves transformer does
>have a current shunt but I'm not going to rely on that on its
>own. I would want to build some inductive ballast eventually.
>Would this asymmetrical arrangement work in a tesla
>coil? (I would not be grounding the coil primary and I
>would have a safety gap from each side of the transformer
>to ground). I had a book Babina Press on coils and transformers
>which I'm sure had a chapter on winding your own chokes -
>naturally now that I'm looking for the book it has disappeared
>through a split in the space time continuum. If it appears in a parallel
>universe near you could you send it back to me (by email of course)
>
>I'm using then together to drive a Jacob's ladder I built
>with a couple of pieces of 1/2" copper pipe. It arcs at 
>1/4 inch gap but the arc sticks moving the pipe back slightly
>sends it slowly upwards. Is the problem too low a voltage or
>likely to be in the geometry?
>
>I built the Jacobs ladder first to see the arc and its likely
>problems. I now appreciate that an arc can carry a very
>high current and that quenching is going to be a problem.
>(I've got some 1.5" copper pipe and I plan on building a multiple
>static gap - the microwaves also yielded fans).
>
>I've also got two large (2.5" * 7" cylinders) 0.01uf caps 30kV DC
>- with big screw terminals which I hope will stand up to 5.5 - 7.5kV AC.
> In theory I only need 400 watts with these - fine for starters but how
>do I arrange things to avoid having 3KW flaring uselessly in the gaps?
>
>have fun,
>
>Alan Sharp (UK)
>
>(relieved mosfets world are celebrating that I've moved over to gaps 
>for a while - wonder how much copper pipe I can blow?)
>
>

Did the 2kw heater work ? what is the current you could get from this (i
mean
if the microwave xf take about 800w each and there are 3 then
3*800=2400w,
with a current limit i'll get less power but also less voltage)
is this right ?
how would i make an inductive ballast, and how big should it be ?
----------------------------
Kenneth Aaron 
E-mail : kennetha-at-geocities-dot-com
http://www.geocities-dot-com/SunsetStrip/8736/
----------------------------