Re: FW: woops Link to schematic, sorry (fwd) Scrapt that. (fwd)

["High Voltage list" <hvlist@xxxxxxxxxx>]

Original poster: Steven Roys <sroys@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Sat, 09 Dec 2006 19:43:50 -0600
From: Bert Hickman <bert.hickman@xxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: FW: woops Link to schematic, sorry (fwd) Scrapt that. (fwd)

High Voltage list wrote:

> Original poster: Steven Roys <sroys@xxxxxxxxxx>
> 
> 
> 
> ---------- Forwarded message ----------
> Date: Fri, 8 Dec 2006 15:55:18 -0800
> From: Jim Mora <jmora@xxxxxxxxxxx>
> To: hvlist@xxxxxxxxxx
> Subject: FW: woops Link to schematic, sorry (fwd) Scrapt that.
> 
> Hello All
> 
>  
> 
> There is a better circuit for full wave and center grounded transformers.
> Maybe I can use my .03 Maxwell caps boat anchors as the center caps, On my
> dual 15/60 NST. 
> 
>  
> 
> What would you recommend for the outside caps values/ and vP I'll over kill
> it otherwise. I have lots of HVHC diodes and MMC caps.

The caps on each side of the chain should be the same value. There is an 
approach that can be used to provide reduced ripple by using higher 
capacitance/stage as you go to lower stages. For an N-stage CW, where 
top stage has capacitors of size C, the bottom most stage set of caps 
should all be N*C, the next higher stage (N-1)*C, etc. This provides 
increased current capability at the lower stages to better support the 
rest of the CW chain and reduce ripple.

> 
>  
> 
> This is to charge My Mighty Geek caps. I will use two stages and add a spark
> gap and metering before I hook up the mongo caps. I have had the IEE spark
> chart for needles and spheres on my wall for ages, can't seem to find it
> when I need it. Figures. Current will be limited by (4) shallcross 100k
> ceramic in series which should limit the dual trannies @ .10something ma
> 
>  
> 
> Someone please send gap chart.
See:
http://205.243.100.155/photos/HVStuff/SGapVolt.jpg
> 
>  
> 
> Thanks for all your help 
> 
>  
> 
> Jim Mora
> 
> Please see the center taped version
> 
>  
> 
> http://www.blazelabs.com/e-exp15.asp
> 
>  
> 
> -----
<snip>

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