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Path: utzoo!watmath!clyde!burl!ulysses!allegra!oliveb!hplabs!hp-pcd!john
From: john@hp-pcd.UUCP (john)
Newsgroups: net.analog
Subject: One farad Caps
Message-ID: <102500002@hp-pcd.UUCP>
Date: Mon, 22-Jul-85 16:37:00 EDT
Article-I.D.: hp-pcd.102500002
Posted: Mon Jul 22 16:37:00 1985
Date-Received: Fri, 26-Jul-85 23:40:41 EDT
Organization: Hewlett-Packard - Corvallis, OR
Lines: 20
Nf-ID: #N:hp-pcd:102500002:000:838
Nf-From: hp-pcd!john    Jul 22 12:37:00 1985

<<<<


   Back when I first sat down to learn electronics (we won't mention the
year or even the decade) they told us about capacitors and how they were
measured in Farads."Of course the Farad is actually a ridiculous unit
of measure because a one Farad capacitor would be about the size of a
railroad tank car." 

   Recently I have seen data on a new type of capacitor called the Maxcap(tm)
double layer capacitor. A 1 farad maxcap is 1.1 inches wide and .55 inches
high. It looks like its some sort of a very weak battery that can be fully
discharged or even reverse charged without harm.

   Has anyone ever used these? It would seem that the initial surge current
if you connected one to a 5 volt supply could easily overload most supplies.
Any experiences and or horror stories would be appreciated.

John Eaton
!hplabs!hp-pcd!john