[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE: Tuning Troubles
Original poster: "WIZZARD . by way of Terry Fritz <teslalist-at-qwest-dot-net>" <pbobyk-at-hotmail-dot-com>
John Couture
Thanks for the input.
I think the figures you provided are accurate.
I have bigger troubles now.
I have to unpot one of my neons and do some repairs. :-(
I used two mica 1.8nfd 10KVAC transmitting caps on either leg of the paired
NST's, to ground, hoping to save them from RF damage. I also added 2/ 2mH,
18 Guage, ferrite core coils in series with each leg. My safety gaps 1/4"
to the NST case per leg would let go quite violently about every half second.
I'm no longer sure what to use for protection because I think my protection
is the cause of failure.
I grounded both 15K/30 NSTs and the mica caps, and the safety gap to the
house ground. The TC sec. has a dedicated RF ground.
It has become quite apparent that my coil was doomed before I plugged it
in. LOL!
I was in too much of a rush...even though it took me a year and a half from
start to finish.
I read as many posts and visited a large number of sites during that time.
I guess I have lots of time once again to figure out what to do....
Thanks to people like you I may once again see sparks!
WIZZARD ( in training )
"coiler" lamenting
>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: RE: Tuning Troubles
>Date: Tue, 27 May 2003 17:45:45 -0600
>MIME-Version: 1.0
>Received: from mc3-f11.law16.hotmail-dot-com ([65.54.236.146]) by
>mc3-s20.law16.hotmail-dot-com with Microsoft SMTPSVC(5.0.2195.5600); Tue, 27
>May 2003 16:54:28 -0700
>Received: from hotlilpup.pupman-dot-com ([63.225.119.186]) by
>mc3-f11.law16.hotmail-dot-com with Microsoft SMTPSVC(5.0.2195.5600); Tue, 27
>May 2003 16:53:35 -0700
>Received: from poodle.pupman-dot-com (poodle.pupman-dot-com [63.225.119.188])by
>hotlilpup.pupman-dot-com (8.11.6/8.11.6) with ESMTP id h4S00nH28279;Tue, 27
>May 2003 18:00:49 -0600
>Received: (from slist-at-localhost)by poodle.pupman-dot-com (8.9.3/8.9.3) id
>RAA28932;Tue, 27 May 2003 17:53:11 -0600
>X-Message-Info: vGzX0e+ktu4eTM/f4z2mGHVUY4bc7VkI
>Resent-Date: Tue, 27 May 2003 17:53:11 -0600
>Message-Id: <5.2.0.9.0.20030527174541.00a7a7a0-at-pop.dnvr.qwest-dot-net>
>X-Sender: teslalist-at-pop.dnvr.qwest-dot-net
>X-Mailer: QUALCOMM Windows Eudora Version 5.2.0.9
>X-DCC-servers-Metrics: dick.jymis-dot-com 1049; Body=2 Fuz1=2 Fuz2=2
>Resent-Message-ID: <R_90fC.A.ucF.kk_0--at-poodle>
>Resent-From: tesla-at-pupman-dot-com
>X-Mailing-List: <tesla-at-pupman-dot-com> archive/latest/11839
>X-Loop: tesla-at-pupman-dot-com
>Resent-Sender: tesla-request-at-pupman-dot-com
>Return-Path: tesla-request-at-pupman-dot-com
>X-OriginalArrivalTime: 27 May 2003 23:53:36.0421 (UTC)
>FILETIME=[3042FD50:01C324AB]
>
>Original poster: "John H. Couture by way of Terry Fritz
><teslalist-at-qwest-dot-net>" <couturejh-at-mgte-dot-com>
>
>
>Wizzard -
>
>For your TC to be operating at 200 KHZ your TC parameters should be as
>follows according to the JHCTES Ver 3.3 computer program.
>
>Primary Cap = .011 uf Avg Rad = 6.25
>Width of turns = 8.0
>
>Sec Rad = 1.77 Sec Turns = 1438.2
>Turns/Inch = 53.07 Sec Term = 18.5 pf
>
>The pri turns will be about 14.0 and possibly a little less if the pri
>wiring is longer than normal. The pri to sec clearance will be only 0.46"
>and the K will be 0.161 coupling. Streamers should be about 36" long.
>
>Click the on-line program at
>
> www.mgte-dot-com
>
>Click Tesla then JHCTES(Books).
>Click "Calculate" after you make changes.
>Good Luck.
>
>John Couture
>
>---------------------------------
>
>
>-----Original Message-----
>From: Tesla list [mailto:tesla-at-pupman-dot-com]
>Sent: Monday, May 26, 2003 1:02 AM
>To: tesla-at-pupman-dot-com
>Subject: Tuning Troubles
>
>
>Original poster: "WIZZARD . by way of Terry Fritz <teslalist-at-qwest-dot-net>"
><pbobyk-at-hotmail-dot-com>
>
>I get 24" sparks to a sharpened ground rod horizontal to the torid.
>I am sure that I can do better with the components I am using, I am just at
>a standstill and could use your input. Any Suggestions?
>
>The resonant frequency of my secondary, by itself, measures -at- 200 KHz with
>a frequency generator and scope. Once I assembled everything together I
>measured the secondary with respect to the primary to see if they were the
>same, ( in tune ) and found the secondary frequency shifted to 160 KHz.
>Should I still concentrate on tuning to the "uncoupled" resonant frequency
>of 200 KHz?
>
>My spark gap is made of eight spark plugs in series with a vaccum moving
>air past each spark point very quickly. ( WIZZARD'z Gap )
>
>My RF ground is 1/2" re-bar 3' into the earth.
>
>Here is my Data;
>
>Primary Transformer Output Voltage (VAC)
>15000.0000
>Primary Transformer Rated Current (AMP)
>0.0600
>Primary Transformer Input Frequency (HZ)
>60.0000
>Primary Transformer Input Voltage (VAC)
>120.0000
>Primary Coil Inside Diameter (IN)
>4.5000
>Primary Coil Wire Diameter (IN)
>0.3100
>Primary Coil Wire Spacing (IN)
>0.2500
>Primary Coil Number of Turns
>14.3000
>Primary Coil Angle From Horizontal Plane (DEGREES)
>15.0000
>Secondary Wire Diameter (IN)
>0.0179
>Secondary Coil Total Outside Diameter (IN)
>3.5400
>Length of Secondary Wire (FT)
>27.1000
>Secondary Wire Gauge
>25.0000
>Secondary Turns/Inch
>53.0726
>Top Load Capacitance (PF)
>20.4775
>Sphere Radius/Toroid Tube Diameter (IN)
>4.4000
>Toroid Diameter Tube Center-to-Center (IN)
>14.2500
>
>I'm sorry I don't have a web site to post my photos :-(
>
>http://hot-streamer-dot-com/temp/MAY-22-2003-First%20Sparks.jpg
>
>http://hot-streamer-dot-com/temp/May-3-2003-WizzardzSparkGap.jpg
>
>http://hot-streamer-dot-com/temp/WizzardsTeslaCoil.jpg
>
>http://hot-streamer-dot-com/temp/WizzardsVARIAC.jpg
>
>WIZZARD
>
_________________________________________________________________
MSN 8 helps eliminate e-mail viruses. Get 2 months FREE*.
http://join.msn-dot-com/?page=features/virus