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Article #3963

Re: power from phone line

#3963
From: Peter Fales
Date: Wed, 06 Dec 1989 00:34
17 lines
1118 bytes
In article <14230@jumbo.dec.com>, murray@jumbo.dec.com (Hal Murray) writes:
> Can you scrounge any power from the phone line? I'm not thinking of 
> many watts, just enough to run a few slow CMOS chips.
> 
> Is there an obvious book I should know about that answers things like 
> this?

Check "Understanding Telephone Electronics" from your nearest Radio
Shack.  It is an interesting book, very high level in some areas, very
detailed in others, but as I recall it has some good discussions of
your question.

-- 
Peter Fales			AT&T, Room 5B-420
N9IYJ            		2000 N. Naperville Rd.
UUCP:	...att!ihlpb!psfales	Naperville, IL 60566
Domain: psfales@ihlpb.att.com	work:	(708) 979-8031
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!brutus.cs.uiuc.edu!psuvax1!rutgers!att!cbnewsc!psfales
References: <14230@jumbo.dec.com>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!brutus.cs.uiuc.edu!psuvax1!rutgers!att!cbnewsc!psfales
From: psfales@cbnewsc.ATT.COM (Peter Fales)
Newsgroups: sci.electronics
Subject: Re: power from phone line
Keywords: phone, power, remote
Message-ID: <5255@cbnewsc.ATT.COM>
Date: 6 Dec 89 00:34:54 GMT
References: <14230@jumbo.dec.com>
Organization: AT&T Bell Laboratories
Lines: 17