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Re: Re: Convert your MOT to NST?



Original poster: "S & J Young by way of Terry Fritz <twftesla-at-qwest-dot-net>" <youngs-at-konnections-dot-net>

Weazle is right.  This is not a voltage doubler, but is a level shifter.  It
shifts a sinusoidal waveform from being symmetrical about zero, to having
the bottom of the sine wave at zero volts.  It is simply adding a DC voltage
to the original transformer AC.  A true voltage doubler does indeed have two
diodes and a second "reservoir" or filter cap to smooth the output.  (Yes,
the Magnetron is a special diode, but in oven application, it can be
considered a load resistor and not a second diode of a voltage doubler.)
--Steve
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, January 27, 2002 2:11 PM
Subject: Re: Re: Convert your MOT to NST?


> Original poster: "J. B. Weazle McCreath by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <weazle-at-hurontel.on.ca>
>
>
> At 12:19 PM 27/01/02 -0700, you wrote:
>
> >Original poster: "G by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <bog-at-cinci.rr-dot-com>
> >
> >Hi,
> >I using the classic doubler design.  Two MOTs wired series opposed and
> >outputs wired as so:
> >
> >mot*----||---|---------- MOT ballast----to tank
> >|     1 uf   |
> >|           |<  diode
> >|            |
> >|           |<  diode
> >|            |
> >mot*----||---|---------- MOT ballast----to tank
> >       1 uf
> >
> >My primary tank cap is 0.041 uf.
> >
> <snip>
>
> Maybe I'm all wet, but shouldn't you have two more diodes, one in each
> leg preceeding the MOT ballasts?  You would then have a true voltage
> doubler circuit, as is shown in any electronics handbook.
>
> 73, Weazle, VE3EAR/VE3WZL
>
> Listening: 147.030+ and 442.075+
> E-mail:    weazle-at-hurontel.on.ca
>            or ve3ear-at-rac.ca
> Web site:  http://www.hurontel.on.ca/~weazle
>
>
>