Re: Marx using inductors (fwd)

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Original poster: Steven Roys <sroys@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Wed, 21 Jun 2006 17:08:43 -0500
From: Dr. Resonance <resonance@xxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Marx using inductors (fwd)



We used Allied Electronics resistors --- 3.5 kV rating and only 6 cents each 
in quantities.  Connect 10 in series for 35 kV rating.

Dr. Resonance
----- Original Message ----- 
From: "High Voltage list" <hvlist@xxxxxxxxxx>
To: "hvlist" <hvlist@xxxxxxxxxx>
Sent: Wednesday, June 21, 2006 12:59 PM
Subject: Re: Marx using inductors (fwd)


> Original poster: Steven Roys <sroys@xxxxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Fri, 16 Jun 2006 15:57:57 +0100
> From: Mike Harrison <mike@xxxxxxxxxxxxxxx>
> To: High Voltage list <hvlist@xxxxxxxxxx>
> Subject: Re: Marx using inductors (fwd)
>
> On Fri, 16 Jun 2006 07:40:05 -0600 (MDT), you wrote:
>
>>Original poster: Steven Roys <sroys@xxxxxxxxxx>
>>
>>
>>
>>---------- Forwarded message ----------
>>Date: Sat, 10 Jun 2006 07:49:14 -0700
>>From: Jonathan Peakall <jpeakall@xxxxxxxxxxxx>
>>To: High Voltage list <hvlist@xxxxxxxxxx>
>>Subject: Marx using inductors
>>
>>Hi All,
>>
>>I am planning on finally getting around to building a decent Marx bank for
>>demo use/ I have a bunch of nice TDK 40kV caps. Anyway, I want to use
>>inductors instead of resistors, mostly for cost. I have looked around but
>>can't seem to find much info on using inductors. I made a small Marx 
>>kludge
>>a few years back with inductors, and it worked, but for this one I'd like 
>>to
>>make sure I get all the spark I should. So, any suggestion as to wire 
>>size,
>>inductance etc would be welcome. I am planning to make the frame out of 
>>1/2
>>to 3/4" PVC pipe, and the inductors would be wound on that.
>>
>
> 2 issues I found during brief experients with inductors...
> 1) Remember how much voltage it needs to stand off - Tesla-coil style 
> construction will be needed to
> avoud breakdown
> 2) You will probably need some series resistance, as without it the 
> inductors and caps can form
> local tank circuits which can overvolt the caps - I had a lashup inductive 
> MG with 25KV input throw
> 4" sparks across the caps...!
>
>
>
>