Re: Initial setting for sync phase angle on an RSG

To: tesla-at-pupman-dot-com
Subject: Re: Initial setting for sync phase angle on an RSG
From: "Megavolt Nick" <tesla-at-fieldfamily.prontoserve.co.uk> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
Date: Tue, 08 Feb 2000 11:46:38 -0700
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Hi All,
          does anyone have any experience with hall effect, optical etc.
sensors reading the break rate of an rsg?  I'd just like to be able to have
some sort of fairly accurate break rate meter as just comparing the pitch to
your keyboard works ok but isn't to instant.

Regards
Nick Field


> Original Poster: Finn Hammer <f-hammer-at-post5.tele.dk>
>
> Try this, because it works:
>
> Replace the flying electrodes with similar iron piece. Then magnetize it
> a bit with a magnet. Don`t need much magnetism for this application.
> Next wind a few turns around your fixed electrodes, and use this as a
> pickup coil, directly into the scope. At a  sensitive setting (start
> high), you get:
>
>
>                _______________________/\  ____________
>                                         \/
>
>             Nice little peakie at allignment of the electrodes.
>
> I use this method on my sync gap with 300 BPS, and the coil I wind is
> just a cliplead wound around the fixed electrode 4-5 times. You may have
> to also use an iron stick instead of the fixed tungsten electrode, I use
> short pieces of allthread, anything you got lying around will do. Easy
> and neat.
>
> Cheers, Finn Hammer
>
> Tesla List wrote:
> >
> > Original Poster: Paul Eugene Kidwell <tmb-at-ieee-dot-org>
> >
> > Hi Everybody,
> >
> > I don't have an RSG my self to try this on, but I had a thought.
> >
> > What if...
> >
> > You temporarily  replace the stationary electrodes on your RSG with
metal
> > brushes,
> > wire the electrodes to a small battery with a series resistor so that
current
> > would flow when the rotating electrodes bursh past the stationary
> brushes. Then
> > connect a dual trace scope so that the first trace is connected to your
110
> > A/C,
> > and the second trace connected between the RSG electrode and resistor?
> >
> > You should see a nice sine wave on the top trace, and a pulse indicating
> > when the
> > RSG fires on the bottom allowing you to adjust the phase angle rather
> > accurately
> > without having to put your hands close to HV.
> >
> > Think this would work???
> >
> > Paul
>
>
>