Re: synchronous gap help (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Tue, 10 Jul 2007 16:12:05 -0400
From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: synchronous gap help (fwd)

Doc R. is probably right, while I use an 1/8 rod for my MOT array (lower 
voltage, but higher current, roughly the same wattage), I only do short 
runs, the longest being 1 minute solid (call me paraniod, but I just don't 
want my finicky MOTs to die, their track record is not so good (not to 
mention I usually flip the breaker on extended runs, hopefully some PFC caps 
will fix this)).  So, if you plan on the average run being a few minutes, go 
for the bigger rod.  With that said, does anybody know where I could find a 
1/4 in. tungsten rod?  I haven't checked my local welding shop yet, as I am 
sure they have them, my concern is price, is there some magical place where 
everybody gets their tungsten because it is cheap?  Thanks.
Scott Bogard.


>From: "Tesla list" <tesla@xxxxxxxxxx>
>To: tesla@xxxxxxxxxx
>Subject: Re: synchronous gap help (fwd)
>Date: Tue, 10 Jul 2007 13:21:23 -0600 (MDT)
>
>
>---------- Forwarded message ----------
>Date: Tue, 10 Jul 2007 14:04:49 -0500
>From: resonance <resonance@xxxxxxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Re: synchronous gap help (fwd)
>
>
>
>At this power level I would suggest 1/4 inch dia. electrodes.  1/8th inch
>may overheat to redhot on the electrode tips and cause poor quenching.
>
>Resonance Research Corp.
>www.resonanceresearch.com
>
>
>----- Original Message -----
>From: "Tesla list" <tesla@xxxxxxxxxx>
>To: <tesla@xxxxxxxxxx>
>Sent: Tuesday, July 10, 2007 11:07 AM
>Subject: RE: synchronous gap help (fwd)
>
>
> >
> > ---------- Forwarded message ----------
> > Date: Tue, 10 Jul 2007 08:11:56 -0700 (GMT-07:00)
> > From: penny831@xxxxxxxxxxxxx
> > To: Tesla list <tesla@xxxxxxxxxx>
> > Subject: RE: synchronous gap help (fwd)
> >
> > I have a related question on the propellor gap. I'm planning on pushing
> > 15/120 through an .125 thoriated tungsten electrode. Is that to much 
>power
> > for such a small electrode? Your thoughts would be appreciated.
> >
> > -----Original Message-----
> >>From: Tesla list <tesla@xxxxxxxxxx>
> >>Sent: Jul 10, 2007 7:27 AM
> >>To: tesla@xxxxxxxxxx
> >>Subject: RE: synchronous gap help (fwd)
> >>
> >>
> >>---------- Forwarded message ----------
> >>Date: Tue, 10 Jul 2007 08:55:27 -0400
> >>From: "Lau, Gary" <Gary.Lau@xxxxxx>
> >>To: Tesla list <tesla@xxxxxxxxxx>
> >>Subject: RE: synchronous gap help (fwd)
> >>
> >>I think you're going to run into a problem using your relatively small
> >>teletype motor to spin-up such a heavy 3/8" thick disk.  I was barely
> >>able to get such a motor to spin a 09" thick x 6.12" diameter G10 disk
> >>with just 4 brass acorn nuts electrodes, and it utterly failed to sync
> >>with anything larger.  I'd strongly recommend using a propeller gap if
> >>using a Teletype motor.  My SRSG page:
> >>http://www.laushaus.com/tesla/sync_gap.htm, and Terry Blake's:
> >>http://tb3.com/tesla/sparkgaps/index.html
> >>
> >>Regards, Gary Lau
> >>MA, USA
> >>
> >>> ---------- Forwarded message ----------
> >>> Date: Mon, 09 Jul 2007 23:59:58 +0000
> >>> From: ameen_ghavam@xxxxxxxxxxx
> >>> To: Tesla list <tesla@xxxxxxxxxx>
> >>> Subject: synchronous gap help
> >>>
> >>>         I'm building a 240 bps srg for my tesla coil and was wondering
> >>if
> >>> anyone would give me any tips or suggestions. I'm planning to use a
> >>3/8 "
> >>> g10 rotor 8" in diameter with 4 1/4 " tungsten electodes held on with
> >>> shaft collars (the disc is pinched between the collars). A sheet metal
> >>> ring connects these electrodes. I have two stationary electrodes (one
> >>> gap). My motor is a Teletype 1/12 hp motor, synchronous, and runs at
> >>3600
> >>> rpm. Any tips on how to balance, cut the g10 (i've heard its hard to
> >>cut),
> >>> motor arbor, or anything else I should know? Also, please email me off
> >>the
> >>> list. Thanks.
> >>>
> >>Cheers,
> >>>
> >>> Ameen Ghavam
> >>>
> >>
> >>
> >>
> >
> >
> >
> >
>
>
>
>

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