[time-nuts] 4 KV Power Supply Recommendations

[john.foege at gmail.com]

The lightbulb wattage can be selected accordingly to limit the current as needed.

You'll notice if you dead short the seconday, the light bulb will glow brightly, but that you won't be lighting your MOT on fire like you would if you had no current limting.
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-----Original Message-----
From: Bob Camp <lists at cq.nu>
Date: Sun, 17 Jan 2010 20:33:16 
To: Discussion of precise time and frequency measurement<time-nuts at febo.com>
Subject: Re: [time-nuts] 4 KV Power Supply Recommendations

Hi

You also could leave the windings as is and feed the secondary voltage into a voltage multiplier. Still not very safe to wire up. 

If you did wire it up, the available current would be pretty massive. I certainly would not attach it to an ion pump I cared about.

Bob


On Jan 17, 2010, at 6:53 PM, Stanley Reynolds wrote:

> 
> 
> 
> 
> ----- Original Message ----
> From: Chris Stake <stake at btinternet.com>
> To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
> Sent: Sun, January 17, 2010 5:05:01 PM
> Subject: Re: [time-nuts] 4 KV Power Supply Recommendations
> 
> What is the operating voltage of the magnetron in a domestic microwave oven?
> Although VERY HAZARDOUS, it might be possible to adapt the PSU from an old
> one?
> Chris Stake
> 
> Yes, if you remove the transformer shunts and the filament windings and add more primary windings in the space you would get about 2700v with a full wave bridge. You also need to lift one side of the secondary that is grounded to the frame. Yes very dangerous and yes I'm luck to be able to tell.
> 
> Stanley
> 
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