Re: Rotary gap nearly done...

To: tesla-at-pupman-dot-com
Subject: Re: Rotary gap nearly done...
From: Richard Hull <hullr-at-whitlock-dot-com>
Date: Mon, 21 Oct 1996 15:25:53 -0700
Tesla List wrote:
> 
> >From chip-at-poodle.pupman-dot-comSat Oct 19 21:30:48 1996
> Date: Sat, 19 Oct 1996 21:21:12 -0600 (MDT)
> From: Chip Atkinson <chip-at-poodle.pupman-dot-com>
> To: Tesla List <tesla-at-poodle.pupman-dot-com>
> Subject: Rotary gap nearly done...
> 
> Greetings,
> 
> First, we now have over 250 subscribers!  What have I gotten myself into? :-)


Good man Chip!!!  You are a Tesla coil builder community - "spark plug" 
just like Harry Goldman.  Keep it up!  You're pilin' on the "good" Karma!

Richard Hull, TCBOR
snip


> Since I have 12 studs on the rotor, I get about 690 breaks per second
> with this arrangement.  The rotor is about 12" in diameter, so the dwell
> time is "short".  The question that I have is "Is the 690 bps too high
> for starting out?"  I ordered one of those Carter motors from C&H Sales,
> but I'm wondering if It would be OK to start using the gap as is, or will
> I likely blow a cap?


~700 BPS.... That's right up there, but it should be OK if you have a 
beefy transformer.  Neons won't appreciate that rate though.  The rate 
would be fine for a .025 or smaller capacitor and a pole pig.
R. Hull

> 
> I took a fair amount of time and care in building the thing, and it looks
> pretty nice.  The other thing that's kind of amazing is how smoothly it
> runs.  I made sure everything was true on the lathe, and used uniform
> parts.  Still, I expected some sort of vibration, but get little if any.
> I'm totally psyched about the whole thing.  I also took some pictures,
> and will try to get them scanned and posted sometime in the coming week.
> 
> Chip
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=->  Chip Atkinson
>  http://bhs.broo.k12.wv.us/homepage/chip/info.htm
>  --- Everyone is someone else's weirdo. ---
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Good luck with the new gap, chip!

Richard Hull

[ Well, I have both the things required -- a 10KVA pole pig, and both a 
  0.025uF and 0.018uF cap (CP and Rolled respectively).  Time to fire the
  thing up again ... Gulp! -- Chip ]