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From: larry@tapa.uucp (Larry Pajakowski)
Newsgroups: sci.electronics
Subject: Re: incandescent light bulb life extender
Summary: PTC Thermistors for light turn on
Message-ID: <1990Dec7.184554.12080@tapa.uucp>
Date: 7 Dec 90 18:45:54 GMT
References: <58335@brunix.UUCP> <1990Dec4.113531.10096@csc.canterbury.ac.nz>
Reply-To: larry@.UUCP (Larry Pajakowski)
Organization: Pata System Consultants
Lines: 12

Most of the disks I've seen these days are diodes.  What I'm looking for are
some PTC thermisistor disks I purchased about 12 years ago from Brookstone I
think.  These softened the turn on transient and slightly reduced the voltage.
It would take a 250W light in my garrage about 3 seconds to come up to full
brightness.  That same 250W light was still going strong when I moved out 2
years ago.

Anybody know if these are still being manufactured?  DigiKey among others
carries the wire in flavor but the under the bulb is more convenient.

Larry Pajakowski
larry@tapa.uucp