I know this was not what you were looking for in regards to an answer but
how about winding your own? You would learn a hell of a lot in the
process... Who knows, it might spark ideas for future projects :)
On Mon, Feb 15, 2021, 9:08 PM Steve White <steve.white1@xxxxxxxxx> wrote:
> My method was similar but a little riskier. I timed it with the 4 flying
> electrodes in place. I used one of those U-shaped optical
> transmitter/receivers that allows the tungsten electrode to pass through
> it. The clearances are tight.
>
> Steve White
> Cedar Rapids, Iowa
>
> ----- Original Message -----
> From: "shaun" <snoggle@xxxxxxxxxxxxxx>
> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> Sent: Monday, February 15, 2021 12:41:26 PM
> Subject: Re: [TCML] sync motor
>
> I have two holes in the rotor (for 120 bps). On one side of the spinning
> rotor I point a sk2035a photo transistor through the hole on the rotor and
> on the other side the detector. When it spins sends a pulse to the scope
> which is triggering on line to a old transformer the other channel has the
> rotor pulse. Overlap the two channels and align. Works very well and is
> fun.
> Later on.
>
>
>
> -----Original Message-----
> From: Tesla [mailto:tesla-bounces@xxxxxxxxxx] On Behalf Of Gary Gaspar
> Sent: February 15, 2021 12:49 PM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] sync motor
>
> Shuan yes it is a hard thing now to find. Can give problems finding the
> sweet spot. My comment had fun with strobe light & the SRSG with the sweet
> spot.
>
> On Sun, Feb 14, 2021 at 10:19 AM shaun <snoggle@xxxxxxxxxxxxxx> wrote:
>
> > I have read the archives for days looking for leads on cheep sync motors,
> > always day or several years too late to get in on the action. I have been
> > looking at the oriental motors that are synchronous but don't lock at the
> > same phase each time, so I would have to use a 1800 rpm with 4 contacts
> for
> > 120 bpm so where ever it locked would be in sync, assuming 90 degree
> locks.
> >
> >
> >
> > I have purchased from ebay, 2 of the teletype motors and they work very
> > well, but the ones that are there now, are way too pricey.
> >
> >
> >
> > Anyone have any to sell, or a tip on where to get one. I followed Dr
> > Resonants leads on motors he talked about, but just another dead end. I
> > don't really want to machine one up, but I guess that is a option.
> >
> >
> >
> > Thanks all.
> >
> > _______________________________________________
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> > Tesla@xxxxxxxxxxxxxxxxxx
> > https://www.pupman.com/mailman/listinfo/tesla
> >
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