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From: lagasse@biomed.UUCP (Robert C. Lagasse)
Newsgroups: net.analog
Subject: Jacob's Ladder
Message-ID: <72@biomed.UUCP>
Date: Thu, 30-May-85 17:46:54 EDT
Article-I.D.: biomed.72
Posted: Thu May 30 17:46:54 1985
Date-Received: Fri, 31-May-85 23:52:41 EDT
Organization: Mass. Gen. Hosp. - Dept. Biomed. Engineering
Lines: 15


      I have tried building a Jacob's Ladder using a 2-transistor oscillator
feeding a T.V. flyback transformer but I have had problems with it:

        1) The transistor oscillator wants about 10 amps @ 12VDC.  An AC
line powered circuit would be more elegant.
        2) The H.V. arc produced wants to stay small in length.  That is, it
does not want to climb up the rods and lengthen and finally break away
unless I blow on the arc with an airstream (really!).  What am I doing
wrong??  Any help is much appreciated. Thanks.




Bob Lagasse @ MGH Boston