Re: X-ray transformer (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Gerry Reynolds <greynolds@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Thu, 14 Dec 2006 20:35:15 -0800
From: Jim Lux <jimlux@xxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>, tesla@xxxxxxxxxx
Subject: Re: X-ray transformer (fwd)

At 05:08 PM 12/14/2006, Tesla list wrote:
>Original poster: Gerry Reynolds <greynolds@xxxxxxxxxx>
>
>
>
>---------- Forwarded message ----------
>Date: Thu, 14 Dec 2006 12:07:49 -0800 (PST)
>From: Scott Kraus <plymouth_4406@xxxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Re: X-ray transformer (fwd)
>
>Chip,
>
>    I bought a unit similar to yours this summer. It was labeled as 
> a Picker high tension generator from a Picker Explorer 2 mobile 
> x-ray machine. It was powered by approximately 10 12 volt lead acid 
> batteries. I was not able to come up with a diagram for the driver 
> circuit but it came with a stack of large thyristors. According to 
> the data tag it requires 120 volts at 8 khz. I was able to get a 
> 9-10 inch spark by powering it with the lamp dimmer ignition coil 
> driver from a posting a couple of weeks ago. I substituted a 200 uf cap.



I have a GE xray system that runs at 500kHz (a pair of SCRs in a 
multivibrator configuration) running off a couple hundred volts of 
NiCd.  Saves mucho mass on the transformer.