Re: Secondary Winding Done
To: tesla-at-grendel.objinc-dot-com, KLINEDA-at-univscvm.csd.scarolina.edu, QUANTUM-at-univscvm.csd.scarolina.edu, WMEYER-at-scientia.up.ac.za, bhaley-at-shore-dot-net, coco-at-astroman-dot-com, frerichs-at-zfe.siemens.de, froula-at-cig.mot-dot-com, haba-at-snakemail.hut.fi, scott-at-csustan.csustan.edu
Subject: Re: Secondary Winding Done
Date: Mon, 12 Feb 1996 15:01:11 -0500
>Received: from mail04.mail.aol-dot-com (mail04.mail.aol-dot-com [126.96.36.199]) by uucp-1.csn-dot-net (8.6.12/8.6.12) with ESMTP id NAA05976 for <tesla-at-grendel.objinc-dot-com>; Mon, 12 Feb 1996 13:04:21 -0700
In a message dated 96-02-12 10:48:46 EST, tesla-at-grendel.objinc-dot-com writes:
> I was able to take the time to get my secondary completed today.
>It seems that most of my time has either been at work or collecting
>parts for this project. Today, I took the advice that was listed in
>the past, namely making a secondary winder to make the job easier
>and I finally got started. I took a 0-90VDC gearmotor with 0-20 RPM
>output and used it to build a winder. Some wood, some nails and
>that ever present trusty duct tape and it worked great. I used an
>acrylic form 8"diameter by 36" long and wound 28" of #20 wire on it.
>It took about 1 1/2 hours with my daughter helping feed the wire off
>the spool. The other advice that I followed was to use the Behr
>Super Build 50 product--$22.99 for 48 oz. Not cheap stuff but it
>sure looks great! I'm now going to need some ideas on how to get
>that Behr stuff off the keyboard here too! :-) Just kidding-- hope
>the secondary drys by tomorrow, but it may need some heat, since the
>basement here in Wisconsin isn't all that warm.
> Well, my next step is the spark gap--I'm going for a
>rotary/series type (using pole pig) that will have a small plastic
>fan mounted on either side of the rotor unit. This type of fan only
>requires about 27 watts at 3450 RPM so I feel at higher RPM I should
>still not overload the drive motor (I hope!). I hope to, in effect,
>help purge the immediate area simply by providing a significant
>number of air exchanges per minute in the area of all the spark
>gaps. It should work along the lines of avacuum gap, maybe with an
>attitude. I would appreciate any comments if this fan idea has
>already been tried--good or bad news--either would help. Well, I
>better run back down and see if the secondary is still going round
>and round. I sure would hate to ruin it now since it looks pretty
>nice with that Behr Super Build 50!
Sounds like a great project. That secondary should really work well.
I use a rotary in series with a static gap. Both gaps have fans installed
primarily to provide some cooling. The air from the fans doesn't really have
any effect on the quenching of the gaps. You need a great volume of air to
quench a static gap. The rotary should be self quenching by nature and only
maybe needs some air for cooling.