[Prev][Next][Index][Thread]
Help needed on Oudin coil
---------- Forwarded message ----------
Date: Mon, 6 Oct 1997 21:51:35 +0200 (MET DST)
From: anjorsta-at-online.no
To: tesla-at-pupman-dot-com
Subject: Help needed on Oudin coil
I have a partial schematic on an Oudin coil (resembles closely to a tesla coil)
I found this somewhere on the net. Some of the document is missing.
Any suggestions on how many windings the coil should have per layer and how much
insulation it should be between the layers
5 turns 5000 turns 32 awg
--------------^^^^^-^^^^^^^^^^^^^------ HV out
some hundred volts, 35 W |
------------| |-----
Cap, 1uF
This is the document
" The capacitor discharges through the five-turn primary winding of the
Oudin coil. The primary is wound with five turns of ¼-inch copper tubing on
a 2¼-inch plastic form three inches in diameter.
The secondary winding consists of 5,000 turns of No. 32 enameled magnet
wire wound on a ½-inch rod of clear plastic. Each layer of wire must be
carefully insulated with a layer of varnished cambric that extends well
beyond the end of the coil. When the winding is completed, the secondary
coil must be thoroughly doped with high-grade insulating varnish. Both ends
of the coil are insulated with a tube of varnished cambric.
The assembly is then slipped inside the plastic form on which the primary
was wound. The outside end of the secondary is brought out through a small
hole in the form and soldered to one end of the primary winding. The inner
end of the secondary is threaded through a four-inch length of ½-inch
plastic tubing and soldered to the inner face of a chromium-plated chair
glide, which serves as the high-voltage terminal. The ends of the primary
form are then closed with disks of ¼-inch plastic and secured in place with
screws at the edge. A ½-inch hole in the center of one disk admits the tube
support for the high-voltage terminal."
Atle Jorstad