Original poster: "David Rieben" <drieben@xxxxxxxxxxxxxxx>
Alan,
I'm not sure why you clipped the "Ball lightning-don't try this at
home" thread and attached it to this letter? and neither do I un-
derstand why an oriental motor would easily sync turning ccw,
but not turning cw, but since it doesn't matter which direction
the shaft turns in an SRSG, I would just let her happily turn ccw,
in sync, and be done with it ;^) BTW, how do you change the
direction of shaft rotation?
David Rieben
----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Sunday, July 30, 2006 10:14 PM
Subject: Oriental Motor Sync Motor
Original poster: "Alan Majernick" <rainylake@xxxxxxx>
I have been experimenting with some small oriental motors. They are able to
operate both cw and ccw. When operating in ccw mode they hit sync with a 4"
rotor at about 90 volts with a 2.5 cap. When operating in cw mode it won't
go into sync even at 120v with up to a 6 mfd cap. Anyone have any ideas why?
Or ideas on how to get them to sync at lower voltage?
Thanks Alan
-----Original Message-----
From: Tesla list [mailto:tesla@xxxxxxxxxx]
Sent: Saturday, July 29, 2006 9:57 PM
To: tesla@xxxxxxxxxx
Subject: Re: Ball Lightning Experiment - Don't try this at home
Original poster: "Harold Weiss" <hweiss@xxxxxxxxxx>
It might be better to build a vented "tank" if the lid keeps
deforming. Build the vent as a labrinth to catch the fragments, and
still allow venting of the blast. Check into pyrotechnic
safes. They are built to handle detonation of the contents and still
remain in one piece. They would be a good design to follow in
construction of blast tanks for quartershrinkers and ect.
David E Weiss
>Original poster: "David Rieben" <drieben@xxxxxxxxxxxxxxx>
>
> Hi Peter,
>
> Distance can be your friend but if you don't have that
> luxury, then a sturdy containment vessel is the next best
> thing. I use a containment vessel with solid 1/8" thick
> walls and a lid of the same with a 1/2" thick lexan "win-
> dow" through which the electrode leads pass. I discharge
> up to 20 kJ inside this vessel and the steel lid does bend
> from the blast and has to be bent back down with a large
> hammer after firing. Of course the lid must be secured in
> place to keep it from "blowing off" and is held in place by
> 2 bolts with wing nuts.
>
> David Rieben