Re: More on the Oscilloscope/Static pickup issue

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#744

From: Nico Coesel
Date: Thu, 06 Aug 2009 16:42

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Fred Abse <excretatauris@invalid.invalid> wrote:

>On Wed, 29 Jul 2009 14:31:16 -0400, RFI-EMI-GUY wrote:
>
>> It is possible that even an older style CRT scope might be susceptible
>> given the opening for the CRT screen might be a sufficient aperture for
>> the ESD pulse.
>
>Tek used to offer an option on their high-end 'scopes, having extra
>bonding contacts around all the panels, and a mesh screen over the CRT
>face. My 7104 is like that.
>
>The old HP180 (lovely instrument, that was) came with a mesh CRT filter as
>standard. Wish I'd still got mine.

I don't think so. These are so old they fall apart. I once bought a
HP183 (up to 300MHz) but it turned out to be a pile of junk.

-- 
Failure does not prove something is impossible, failure simply
indicates you are not using the right tools...
                     "If it doesn't fit, use a bigger hammer!"
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From: nico@puntnl.niks (Nico Coesel)
Newsgroups: sci.electronics.design,aus.electronics
Subject: Re: More on the Oscilloscope/Static pickup issue
Date: Thu, 06 Aug 2009 16:42:31 GMT
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