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From: david@cs.uow.edu.au (David E A Wilson)
Newsgroups: sci.electronics
Subject: Re: LED history ?
Message-ID: <1991Jan28.031708.6748@cs.uow.edu.au>
Date: 28 Jan 91 03:17:08 GMT
References: <1991Jan16.034246.12843@zoo.toronto.edu> <1962@atlas.tegra.COM> <1991Jan23.052308.12366@uhura.neoucom.EDU>
Organization: Dept of Computer Science, Wollongong University
Lines: 12

wtm@uhura.neoucom.EDU (Bill Mayhew) writes:
>In a pinch, I've used an LED as a crude voltage regulator.  The
>knee of the curve is about 1.8 volts, which beats hooking up three
>silicon diodes to get a handy 2 volt drop.  Those low voltage Zeners
>can be rather inconvenient to find, if you're just fooling around
>just prototyping something.

I was surprised to find a small red LED inside my CASIO fx-990 solar powered
calculator (with no way it could be seen from outside) and came to the
conclusion that it must be used as a regulator.
-- 
David Wilson	Dept Comp Sci, Uni of Wollongong	david@cs.uow.edu.au