Article View: mod.telecom
Article #615Line In Use Circuit: How do I make one?
From: ewhac
Date: Sat, 10 Jan 1987 08:21
Date: Sat, 10 Jan 1987 08:21
24 lines
1763 bytes
1763 bytes
[ Hello. My name is Peabody. I suppose you know yours.... ]
Hold circuits are nice, but I'd like to build a little circuit that
turns an LED on or something on all other phone extensions when one of the
extensions is in use (thus letting someone in another part of the house know
the phone is in use). This will go a long way to keeping my mother from
picking up the phone when I'm talking to another computer.
Has anyone seen such a beast? Pointers to such would be
appreciated.
AtDhVaAnNkCsE.
_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_
________ ___ Leo L. Schwab
\ /___--__ The Guy in The Cape
___ ___ /\ ---##\ ihnp4!ptsfa!well!ewhac
/ X \_____ | __ _---)) ..or..
/ /_\-- -----+==____\ // \ _ well ---\
___ ( o---+------------------O/ \/ \ dual ----> !unicom!ewhac
\ / ___ \_ (`o ) hplabs -/ ("AE-wack")
____ \___/ \_/
Recumbent Bikes: "Work FOR? I don't work FOR
The _O_n_l_y Way To Fly! anybody! I'm just having fun."
Technical Details
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<8701210701.AA19317@ucbvax.Berkeley.EDU>Path:
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!decvax!ucbvax!ewhac@lll-lcc.ARPA@well.UUCP From: ewhac@lll-lcc.ARPA@well.UUCP Newsgroups: mod.telecom Subject: Line In Use Circuit: How do I make one? Message-ID: <8701210701.AA19317@ucbvax.Berkeley.EDU> Date: Sat, 10-Jan-87 03:21:30 EST Article-I.D.: ucbvax.8701210701.AA19317 Posted: Sat Jan 10 03:21:30 1987 Date-Received: Wed, 21-Jan-87 18:52:39 EST Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: well!ewhac@lll-lcc.ARPA (Leo 'Bols Ewhac' Schwab) Organization: Whole Earth Lectronic Link, Sausalito CA Lines: 24 Approved: telecom@xx.lcs.mit.edu Summary: Schematics would be nice....