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From: Watson 'Atto Parsec' Name
Subject: Re: luxeon star leds
References: <4qOdndKA8o8vaH2gXTWcow@texas.net> <email@example.com> <firstname.lastname@example.org> <email@example.com> <firstname.lastname@example.org> <email@example.com>
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Date: Mon, 9 Dec 2002 20:00:58 -0800
NNTP-Posting-Date: Mon, 09 Dec 2002 21:06:44 PST
Organization: InReach Internet
In article ,
> In article , Watson 'Atto
> Parsec' Name writes
> >I'm thinking that I can connect two in series and also a 1N5817 Schottky
> >diode, and charge four AA Ni-MH cells up during the daytime, and then at
> >night the cells will run a little FM transmitter that draws maybe 10 mA.
> >I wanna put it on top of the bird feeder that the lady across the lawn
> >has hung from the tree. I might need to add preemphasis to get the
> >bird chirps clearly.
> I used to test my experimental low power transmitters by sticking them
> out in the garden. For some reason it just sounds really nice having a
> microphone in amongst the wildlife.
> I toyed with the idea of a solar powered wildlife transmitter, but
> decided that the frequency drift as the battery ran down could cause
> interference with commercial radio channels in the direct neighbourhood.
You have to do a bit of swamping, adding capacitance so that the voltage
influences on the freq are minimized.
You're going to have the same freq drift as the 9V or whatever battery
runs down, too, so you should try to get the Tx working right no matter
My email address is whitelisted. *All* email sent to it
goes directly to the trash unless you put NOSPAM in the
Subject: line. alondra101 hotmail.com
Don't be ripped off by the big book dealers. Go to the URL
that will give you a choice and save you money(up to half).
http://www.everybookstore.com You'll be glad you did!
Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html
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