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From: WDBURNS%MTUS5.BITNET (William D. Burns)
Newsgroups: sci.electronics
Subject: Phone in-use light?
Message-ID: <021291.200601WDBURNS%MTUS5.BITNET>
Date: 13 Feb 91 01:06:01 GMT
Sender: usenet@terminator.cc.umich.edu (usenet news)
Organization: U of Michigan, ITD Research Systems
Lines: 23

Greetings All,
  I have a real simple (I hope) question/project:
I need to build some sort of indicator so that my roommates don't pick-up
the other phone when I'm on the modem.  I think I saw something like it in
a R-E magazine a few months ago but can't find it to save Sadam's soul.
Can anyone out there give me the low-down on either the issue/magazine to
look for OR a simple circuit diagram???

I'm guessing a 2222, diode and a few resistors would do it but not sure...

Thanks

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