Re: Equidrive P.S.

["Tesla list" <tesla-at-pupman-dot-com>]

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

Weazle & Coilers,

I have been using 2 MO diodes in series for the de-Qing diode with no
problems so far.  And I have used just one MOT running in air with no
insulation problems (no flashovers, etc.).  Like you, I left the connection
between secondary and core, and mount the whole transformer on insulators
cut from those wonderful white plastic breadboards.  I don't think you need
to put your MOT in oil for your particular power transformer, but it can't
hurt.
--Steve
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, December 09, 2001 1:08 PM
Subject: Re: Equidrive P.S.


> Original poster: "J. B. Weazle McCreath by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <weazle-at-hurontel.on.ca>
>
>
> Hello Greg, Coilers,
>
> You're right, the diagram does have a nice "balanced" look to it.
> A question for you...have you found from experience that twelve
> of the 1N4007 diodes are sufficient?  I've got a 6 KV, 250 mA.
> power transformer that I was thinking of using for an experiment
> with the D.C. resonant charging.  I plan on using a full wave
> bridge with one of my 9 uF. -at- 60 KV capacitors for the supply,
> and wondered about the P.R.V. of a string of 12 being enough.
>
> The "de-Qing" or blocking diode would have to hold off the rather
> high reverse voltage spike from the charging choke.  As well, it
> would have to stand up to whatever RF managed to sneak through the
> choke, although it won't be much with the inductance being high!
> Maybe a string of 4 or 5 M.O. diodes would work nicely for that.
>
> As to the charging choke itself, since one end of the secondary is
> already connected to the MOT core, I'm going to leave it that way
> and connect the core end of the winding to the blocking diode of
> the power supply and the other end to the tank circuit of my coil.
> Anyone see a problem with that?  I think I'll put the entire choke
> in a PVC junction box, immersed in oil, and bring the two leads
> out through porcelain feedthrough bushings.
>
> 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
>
>
>