Re: ARSG-BPS required with 2 MOTs? (fwd)

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Original poster: List moderator <mod1@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Mon, 14 May 2007 13:33:39 +0100
From: Paul Benham <paulb@xxxxxxxxxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: ARSG-BPS required with 2 MOTs? (fwd)

Hi Wyatt,

I now have four MOT's in the power supply.  Two are in series and another
two are in parallel with these.  I have two current balancing transformers,
one for each pair of paralleled MOT's.  They are made using 125VA toroidal
cores with 55+55 turns on them.  All the transformers have the shunts
removed.

I use 2.5uF on each of the four inputs to the full wave doublers and a 0.5uF
output filter capacitor which is going to be increased soon.

I do not have a website.

Best regards,

Paul

P Benham
R&D Engineer

Wood & Douglas Ltd
Lattice House
Baughurst
Tadley
Hants   RG26 5LP
United Kingdom

Tel : +44 (0) 118 981 1444
Fax: +44 (0) 118 981 1567
www.woodanddouglas.co.uk
www.cofdm.com

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----- Original Message ----- 
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Saturday, May 12, 2007 7:01 PM
Subject: Re: ARSG-BPS required with 2 MOTs? (fwd)


> Original poster: List moderator <mod1@xxxxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Fri, 11 May 2007 01:49:32 +0000
> From: nancylavoie@xxxxxxxxxxx
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: ARSG-BPS required with 2 MOTs?
>
> Thanks for the input.Are you pulling this off with only two MOTs?If so do
you have a site I could check out for a better idea of what you're doing?
Thanks again. Wyatt
>
> -------------- Original message -------------- 
> From: "Tesla list" <tesla@xxxxxxxxxx>
>
> > Original poster: "Paul Benham"
> >
> > Hi Wyatt,
> >
> > You will find that the voltage output drops as you increase the BPS
unless
> > you have an awfully large capacitance in your power supply. Capacitive
> > multipliers only charge the output capacitor on every other half cycle
> > unless you run full wave doublers in which case it is every half cycle
which
> > is still only 100/120Hz. I run from 100-300BPS because of this using an
> > ARSG. I also use inductive charging on the output with a de-quing diode
to
> > double the voltage again. Currently I get 8.5' arcs to ground. I have 4
> > electrodes on the rotary which goes up to 5000rpm.
> >
> > Best regards,
> >
> > Paul
> >
> > P Benham
> > R&D Engineer
> >
> > Wood & Douglas Ltd
> > Lattice House
> > Baughurst
> > Tadley
> > Hants RG26 5LP
> > United Kingdom
> >
> > Tel : +44 (0) 118 981 1444
> > Fax: +44 (0) 118 981 1567
> > www.woodanddouglas.co.uk
> > www.cofdm.com
> >
> > This e-mail and any attachments are confidential and may contain
information
> > that is legally privileged. If you are not the named recipient, or
> > responsible for delivering the message to the named recipient, you must
not
> > disclose, distribute, forward, copy, store or use this e-mail or its
> > attachments in any form. If you have received this communication in
error,
> > please accept our apologies and promptly inform the sender by e-mail or
by
> > telephoning the number above. You are also requested to delete this
message
> > and any attachments from your systems immediately. Although this e-mail
and
> > its attachments have been checked by an up-to-date virus-checking
program
> > before transmission, Wood & Douglas Ltd cannot accept liability for any
> > damage sustained as a result of software viruses that maybe present.
> >
> > Registered Office: Lattice House, Baughurst, Hants, RG26 5LP
> > Registration No: 2844692
> > ----- Original Message ----- 
> > From: "Tesla list"
> > To:
> > Sent: Friday, May 04, 2007 5:54 AM
> > Subject: ARSG-BPS required with 2 MOTs?
> >
> >
> > > Original poster: nancylavoie@xxxxxxxxxxx
> > >
> > > I've recently built a 2 MOT power supply complete with a voltage
> > > doubling set up and capacitive current limiting deal per Greg Hunters
> > > awesome site.Want to try it out on both of my already built coils
> > > (ones a 4" and the other is a 6" secondary).Its pretty obvious to me
> > > that the old static gap and vacuum motor I was using with my neons
> > > isn't going to cut it anymore.What I want to know is how exactly do I
> > > calculate the ideal BPS for such a set-up and how do I achieve this
> > > with an asynchronous motor turning 1725 RPM? Thanks in advance! Wyatt
> > >
> > >
> > >
> > >
> > > This message has been scanned for viruses by MailController -
> > www.MailController.altohiway.com
> > >
> >
> >
>
>
>