[Test-Equipment] ESR meter

[Richard Knoppow]

----- Original Message ----- 
From: "Ken Kaplan" <krkaplan at cox.net>
To: "Richard Knoppow" <dickburk at ix.netcom.com>; "Discussion 
of Electronic Test Equipment" 
<test-equipment at mailman.qth.net>
Sent: Monday, July 04, 2011 12:59 PM
Subject: Re: [Test-Equipment] ESR meter


> Hi Richard,
>
> Good write-up on caps. I'm sure it was helpful to many on 
> the list. My question was about the etymology of the word 
> electrolytic. I wasn't sure how the suffix "lytic" 
> applies. I have since found an explanation. Electrolytic 
> relates to something using electrolytes. Simple.
>
> I suppose all of this was ironed out by old guys back in 
> the 1800's. I've often thought that regardless of how much 
> I now know (I are an engineer), I'd be rather useless if I 
> traveled back far enough in time with just the knowledge 
> in my head. Might even get myself in trouble :-)
>
> Regards,
> Ken Kaplan
> kb7rgg
> (also from LA but living in AZ)
>
     Well, I found a good artical on electrolytic capacitors 
at Wikepedia of all places. It discusses the history and 
construction. Although it is not clear about when "dry" 
electrolitics first appeared. From old advertising they seem 
to have been available from about the early  1930s and 
certainly by the mid-1930s.

http://en.wikipedia.org/wiki/Electrolytic_capacitor


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com