Re: Static spark gap copper pipe size

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "rheidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>

I use 9 each 3" cu pipe sections of 1/2" pipe (5/8") not tubing, mounted
inside 3" pvc pipe spaced with a hack saw blade. I use a 1/8" hole every 1"
around the pvc to bolt the cu pipe. I then mount this vertical 3/4 in up on
spacers for ventalation. I use 1" #6-32 bolts to mount and 1.25" bolts for
wires and mounting, screw head inside. one hole centered in each pipe.
  Robert  H

> From: "Tesla list" <tesla-at-pupman-dot-com>
> Date: Thu, 21 Feb 2002 21:53:42 -0700
> To: tesla-at-pupman-dot-com
> Subject: Re: Static spark gap copper pipe size
> Resent-From: tesla-at-pupman-dot-com
> Resent-Date: Thu, 21 Feb 2002 22:11:31 -0700
> 
> Original poster: "J. B. Weazle McCreath by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <weazle-at-hurontel.on.ca>
> 
> 
> At 05:30 PM 21/02/02 -0700, you wrote:
> 
>> Original poster: "Bart McGuyer by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <bmcguyer-at-houston.rr-dot-com>
>> 
>> Hey all,
>> 
>> I'm planning on building a new TCBOR/RQ style cylindrical static gap,
>> but I am having trouble deciding on pipe diameter and length.  I am
>> thinking about using 3/4" wide and 4" long copper pipes.  The gap will
>> be used from 1 to 2Kw.  Also, what is the max gap size I should allow
>> for 15Kv NST's?  12Kv NST's?  Will be cooled by a muffin fan.
>> 
>> Thanks,
>> Bart Mc.
>> 
> 
> Hi Bart, Coilers,
> 
> I used 1" pipe for mine, 4" long like you planned.  It made mounting
> easier, being able to get my fingers in the pipes.  I used a total
> of seven pipes yielding 6 gaps of .022" each.  From my own trials I
> found that a muffin fan wasn't enough and went for a vacuum cleaner
> motor and compressor to get sufficient air flow to quench a kilowatt.
> 
> 73, Weazle, VE3EAR/VE3WZL
> G-1#1214
> 
> Listening: 147.030+ and 442.075+
> E-mail:    weazle-at-hurontel.on.ca
> or ve3ear-at-rac.ca
> Web site:  http://www.hurontel.on.ca/~weazle
> 
> 
>