Re: High frequency impedance of a neon sign transformer

• To: tesla-at-grendel.objinc-dot-com
• Subject: Re: High frequency impedance of a neon sign transformer
• From: EDHARRIS-at-MPS.OHIO-STATE.EDU
• Date: Mon, 25 Mar 1996 22:21:11 -0500 (EST)
• >Received: from phyas1.mps.ohio-state.edu (phyas1.mps.ohio-state.edu

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 

 ---------------------------------------------------------------------------

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

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