Re: HV protection for receiver input?

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#2213

From: Sam Goldwasser
Date: Sun, 10 Aug 2003 13:41

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Watson A.Name - 'Watt Sun' <alondra101@hotmail.com> writes:

> I had a cheap scanner that used semi's on the input.  The first 
> lightning bolt many miles away zapped them.  Got out the soldering 
> iron and replaced.  Same thing again, later.  Pi$$ poor design.
> 
> Don't waste your time.  Use an inductor that has nearly zero ohms DC 
> resistance, or your front end will suffer the same fate.

And the inductor is used how?  In series it will block the RF.  In parallel,
it will still look like a high impedance for the fast rise time spike of
a zap.

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From: Sam Goldwasser <sam@saul.cis.upenn.edu>
Newsgroups: sci.electronics.design,alt.engineering.electrical,sci.electronics.repair,aus.electronics
Subject: Re: HV protection for receiver input?
Date: 10 Aug 2003 09:41:48 -0400
Organization: University of Pennsylvania
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