Re: Primary Scoping

To: tesla-at-grendel.objinc-dot-com
Subject: Re: Primary Scoping
From: jim.fosse-at-bdt-dot-com (jim fosse)
Date: Tue, 27 Feb 96 20:22 PST
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>Jim:
>	Think you need to look into the SHUNT CAPACITANCE of those
>transorbs before you go much further.  Whatever divider you set
>up needs to be frequency compensated or the results won't be
>meaningful.  By the way, if you are looking at the primary you
>don't need anywhere near that high a resistance, which might make
>the job a lot easier.  In any event, if you make such a setup you
>need to make sure that what you measure is just due to current
>flowing in the voltage divider, and not effects of the spark
>discharge.
>Ed Phillips
>
>
Ed,
        they have 100pF for the unidirectional versions. I use them at work
to ESD harden 1Mhz and 2.49Mhz communciations lines. Ah ha, 100pF at 200K =>
8K ohms reactance. I'd better lower the divider impeadance.

        since then I've look at my primary and secondary by using a 12" wire
antennae. I may not bother with the divider network.

                        jim