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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
Click on a see also (sa) or tracing (xx) to view detailed entries about a related subject.
The entries are in alphabetical order by magazine name and then in chronological sequence.
To obtain a copy of any magazine article contact your local public library or the publisher.


Phone pager. Use your telephone to activate a loudspeaker attached to another telephone on the same line. Est. cost: $49 (kit).
ELECTRONICS NOW May 1993 (v.64#5) pg. 45

Party Line. A six station phone-line simulator. It provides authentic dial, ring, and busy signals. It supports caller ID and Distinctive Ringing. Can be used as the hub of a six-line intercom system. Est. cost: $200 (kit). Part 1. Parts list and ordering information. Est. cost: $200 (kit).
ELECTRONICS NOW Jan 1996 (v.67#1) pg. 31

Party-line. Part 2. Construction and configuration details.
ELECTRONICS NOW Feb 1996 (v.67#2) pg. 35

CallDirector. Bring the advantages and conveniences of a PBX system to your home or small-office telephone system. Also functions as an intercom system. Est. cost: $144 (kit).
ELECTRONICS NOW May 1997 (v.68#5) pg. 29

Simple power supply converts two old telephones into a simple intercom.
POPULAR ELECTRONICS [2] Jun 1991 (v.8#6) pg. 19
Added Info POPULAR ELECTRONICS [2] Sep 1991 (v.8#9) pg. 20
Added Info POPULAR ELECTRONICS [2] Aug 1992 (v.9#8) pg. 75, 76
Added Info POPULAR ELECTRONICS [2] Mar 1993 (v.10#3) pg. 75

Build a two-station intercom from old telephones. This circuit can also be used to test telephones, modems, DTMF decoders, facsimile machines and answering machines.
POPULAR ELECTRONICS [2] Apr 1993 (v.10#4) pg. 41

Two circuits for utilizing old telephones as an intercom system.
POPULAR ELECTRONICS [2] Aug 1998 (v.15#8) pg. 50

Use your existing touch-tone telephones as an intercom system. Add a controller and one or more alert modules which are activated by pressing the # key. Est. cost: $55 (kit).
RADIO-ELECTRONICS May 1991 (v.62#5) pg. 44
Added Info RADIO-ELECTRONICS Nov 1991 (v.62#11) pg. 16