Article View: sci.electronics
Article #6015Phone circuit projects...
From: Dan J Keldsen
Date: Sun, 06 Sep 1992 01:50
Date: Sun, 06 Sep 1992 01:50
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I'm trying to find a book or books or just schematics from some kind soul, that would enable to me to have a 2-line system (modifying a 1-line phone) that would have a light for the ringer (on each line), and same light would light (and stay lit) while that line was in use. So, I need plans for a 2-line HOLD circuit, and plans to light da light of a line in-use. BTW, the in-use light should work if an extension phone is in use also, not just the attached phone to said circuit. ---------------------------------------------------------------------- Dan Keldsen Working on a Brain-to- djk@world.std.com MIDI convertor... Somerville, MA Anybody willing to sport BERKLEE College of Music the necessary "elective surgery" ?? ----------------------------------------------------------------------
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Newsgroups: sci.electronics Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!snorkelwacker.mit.edu!world!djk From: djk@world.std.com (Dan J Keldsen) Subject: Phone circuit projects... Message-ID: <Bu4vs5.EMI@world.std.com> Summary: Looking to build circuits to provide hold and in-use functions Keywords: HOLD IN-USE PHONE Organization: The World @ Software Tool & Die Date: Sun, 6 Sep 1992 01:50:29 GMT Lines: 15