Re: "vacuum" gaps
Subject: Re: "vacuum" gaps
From: "Malcolm Watts" <MALCOLM-at-directorate.wnp.ac.nz>
Date: Fri, 12 Apr 1996 14:52:45 +1200
>Received: from rata.vuw.ac.nz (root-at-rata.vuw.ac.nz [184.108.40.206]) by uucp-1.csn-dot-net (8.6.12/8.6.12) with ESMTP id UAA10997 for <tesla-at-grendel.objinc-dot-com>; Thu, 11 Apr 1996 20:53:10 -0600
You got me thinking about vacuum cleaner motors with this...
> A motor from a Tri-Star or Rainbow sweeper work well. A standard
> canister vacu um cleaner motor will well also, it just pulls a
> little less air. Shop-vac moto rs can be used, but they turn at
> twice the RPM's and scream quite loudly. They pull about the same
> amount of air as a standard canister vacuum cleaner. I get mine
> from a local Rainbow dealer who takes "trade-ins". I select a
> vacuum cleaner from the pile that still works and gut it when I
> get home. The motors tend to be in poor shape, but if I get a
> couple of months from it, I've done well and it cost me nothing but
> a little time. One nice thing about these canister vacuum cle aner
> motors is that most of them use a standard bolt circle and pilot
> diameter for mounting.
Sorry to change the subject slightly, but I get the impression these
things rev fairly high. What do you think their suitablility is for
driving a 10" spark gap rotor?
BTW, thanks for organizing the capacitor deal. Mine arrived in
perfect order and well padded.