I have seen video of that method. If you think long enough you can come up
with ideas for anything. By the way we are buried in snow here in central
Indiana
-----Original Message-----
From: Tesla [mailto:tesla-bounces@xxxxxxxxxx] On Behalf Of Steve White
Sent: February 15, 2021 11:56 PM
To: Tesla Coil Mailing List
Subject: Re: [TCML] sync motor
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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> https://www.pupman.com/mailman/listinfo/tesla
>
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