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Re: microwave trans
Subject:
Re: microwave trans
Date:
Tue, 25 Mar 1997 10:06:39 +0200
From:
Kenneth Aaron <kennetha-at-geocities-dot-com>
To:
tweagan-at-mailyv.dnet.dupont-dot-com, tesla-at-pupman-dot-com
>
>Hi Kenneth
>
>You wrote:
>
>< From:
>< Kenneth Aaron <kennetha-at-geocities-dot-com>
>
><question #2 -
><a neon sign xfrmr of 1.5kw costs about 250$ here. if i use 3
><transformers
><salvaged from microwave ovens - connected in series, would this
><work ? the power of each is around 800W and the voltage is 2200v.
>
>
>The cost of new neon sign transformers is too much for me where I live
>as well.I have four microwave transformers connected in an array for
>my power supply.Try to use units that are the same secondary voltage
>and look to see if one lead of the secondary in connected to the core.
>If so, then cut the wire as close to the core as possible and you have
>just gotten around the first problem with these units.The two output
>ends then have a couple of layers of heat shrink tubing put on them for
>insulation.If you are going to connect them in series, the phasing of the
>outputs must be determined with respect to the primary (120v) side to
>ensure that the voltages will be additive once connected.Secure them to
>a sheet of plexiglass and after wiring them up put the whole thing in
>a container of oil to increase the insulation between the windings and the
>core.
>
>You may want to use more than three 2200v units as anything under 10kv
>is hard to get to fire across a gap.
>
>Tom
>
>----------geoboundary--
>
so far i have one 600w 2200v transformer.
it is really difficult getting these for free !
----------------------------
Kenneth Aaron
E-mail : kennetha-at-geocities-dot-com
http://www.geocities-dot-com/SunsetStrip/8736/
----------------------------