[Prev][Next][Index][Thread]
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: "Malcolm Watts" <MALCOLM-at-directorate.wnp.ac.nz>
-
Date: Wed, 10 Apr 1996 09:05:27 +1200
-
>Received: from rata.vuw.ac.nz (root-at-rata.vuw.ac.nz [130.195.2.11]) by uucp-1.csn-dot-net (8.6.12/8.6.12) with ESMTP id PAA12331 for <tesla-at-grendel.objinc-dot-com>; Tue, 9 Apr 1996 15:05:36 -0600
Hi all,
The trends in neon transformer impedance seen at the
secondary terminals are well noted and I think Ed and Scott are spot-
on in this.
To the end of filtering, I did a few measurements a couple of
days ago on a filter lashed up on the workbench (connected to the
transformer. The chokes were PVC hookup wound in a single layer on
several ferrite rods. The caps were 440pF barium titanate per leg.
With no damping, I measured a Q of 30!!! Damping resistance is
obviously a must.
Malcolm