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Re: High frequency impedance of a neon sign transformer
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To: tesla-at-grendel.objinc-dot-com
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Subject: Re: High frequency impedance of a neon sign transformer
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From: EDHARRIS-at-MPS.OHIO-STATE.EDU
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Date: Mon, 25 Mar 1996 22:21:11 -0500 (EST)
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>Received: from phyas1.mps.ohio-state.edu (phyas1.mps.ohio-state.edu [128.146.37.10]) by uucp-1.csn-dot-net (8.6.12/8.6.12) with ESMTP id UAA29954 for <tesla-at-grendel.objinc.COM>; Mon, 25 Mar 1996 20:21:36 -0700
Richard Hull comments:
Ed,
The impedance of the secondary of a neon sign transformer is tremendous at
any frequency! Even if we took the laminations out the secondary, the air
core inductance of several thousand turns of 38 gauge wire in a fist sized
ball would be the best portion of a henry or two and at 500khz, that is
still about 3 megohms. Neon transformers are doomed in Tesla service! Long
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Hi Richard, nice to see you here!
When I measure the impedance looking into the neon secondary at 300kHz,
I get about 1800ohms. Much less than 3Mohm. I have offered some
explainations which I guess you don't buy. Or, if it is the measurement
itself which you don't agree with-- please, everyone, try it yourselves.
I won't be able to respond until after thursday.
-Ed Harris