Name
Last modified
Size
Description
Parent Directory
-
Call Director.pdf
1998-06-30 06:31
1.9M
Ringing Phone Light Flash.pdf
1998-09-11 02:15
48K
Phone Line Sentinel.pdf
1999-03-11 20:32
197K
Telephone-Related Ascii Schematics.pdf
1999-05-17 15:22
40K
Phone Status Indicator.gif
2000-12-08 03:41
6.6K
Inside The Telephone.pdf
2002-01-20 07:05
812K
Telephone Call Recording Adapter.pdf
2003-10-03 05:56
50K
Losses In Early Telephone Lines.PDF
2004-01-29 22:28
17K
Phone Status Light.pdf
2004-05-31 05:31
9.9K
Phone Line Monitor.pdf
2007-02-01 04:05
211K
Electronic Ringer for Telephone Lines.pdf
2007-02-26 05:00
226K
Cordless Phone Supposed Hazards.pdf
2009-01-14 05:56
234K
Telephone Ring Detector.pdf
2009-02-13 04:28
89K
Telephone Line Interface.pdf
2009-05-08 03:35
51K
Telephone Bell Extender.pdf
2009-05-25 03:04
125K
Add a Distinctive Ring to your Phone.pdf
2009-06-30 04:46
78K
Telephone In Use Monitor Errata.pdf
2009-06-30 04:49
14K
The Life of a Phone Hacker.pdf
2009-06-30 05:11
251K
Telephone Line Tester.pdf
2009-06-30 05:17
303K
Optically Coupled Phone Ringer.pdf
2009-06-30 05:43
82K
Opto Isolator Circuit Shows Phone Line Status.pdf
2009-06-30 05:48
85K
Telephone Record-Play Accesory.pdf
2009-07-23 04:07
246K
Caller ID Tech Info.pdf
2009-08-29 21:18
540K
Recreating Sound.pdf
2009-09-12 04:50
123K
Distinctive Ring Decoder.pdf
2009-11-26 04:15
910K
The Phone Sentry.pdf
2009-11-26 06:48
565K
Telephone Status Monitor.pdf
2010-07-01 05:51
224K
Telephone Call Restrictor.pdf
2010-09-15 04:00
1.0M
Telco In A Box.pdf
2011-07-03 00:51
445K
Phone Hold with Music.gif
2011-09-28 19:00
5.1K
Telephone Line Simulator.pdf
2014-02-09 06:11
1.5M
The Party Line Phone Line Simulator.pdf
2016-10-16 20:42
1.2M
Telephone Line Grabber.pdf
2016-10-16 21:14
698K
Telephone Scrambler.pdf
2018-06-22 02:02
5.0M
Telephone Line Controller.pdf
2019-06-04 03:45
2.8M
Automatic 4 Line Telephone Selector.pdf
2020-01-31 21:16
1.9M
Phone Line Simulator.pdf
2020-02-01 06:00
2.1M
Phone Pager.pdf
2020-02-02 01:39
2.5M
Music On Hold Adapter.pdf
2020-02-07 23:03
1.9M
Phone Sentry.pdf
2020-02-07 23:03
954K
Remote Telephone RInger.pdf
2020-02-09 08:12
271K
Telephone Audio Interface.pdf
2020-02-09 23:17
1.2M
DTMF Phone Pad.pdf
2020-02-12 04:00
2.0M
Tele-Toll Timer.pdf
2020-02-23 04:13
1.7M
Home Intercom Using Analog Telephones.pdf
2020-03-07 06:24
1.4M
Telephone Hold Button.pdf
2020-03-15 21:53
534K
Telephone Usage Monitor and Controller.pdf
2020-03-19 21:56
4.1M
Super Hold tor Telephone.pdf
2020-03-23 23:53
1.4M
Music on hold Adapter for Analog Telephone Lines.pdf
2020-03-24 00:23
479K
Telephone Ringing and Speech Circuit.pdf
2020-06-02 23:30
214K
Make a Phone Ring to a Simple Tune.pdf
2020-06-02 23:33
219K
Turn On Appliances Via Long Distance.pdf
2020-06-02 23:49
2.0M
Plug-In Remote Ringer.pdf
2020-06-02 23:52
1.5M
Telephone Bell Extender (2).pdf
2020-06-02 23:56
1.1M
Telephone Call Timer.pdf
2020-06-03 00:00
940K
Phone Lock.pdf
2020-06-03 00:02
622K
Music On Hold Telephone Accessory.pdf
2020-06-03 00:07
1.0M
Telephone Amplifier.pdf
2020-06-04 20:45
1.0M
Telephone Pickup for Dial Phones.pdf
2020-06-10 00:18
958K
Phone Beeper for Recording Calls.pdf
2020-06-10 00:25
909K
Isolated Phone Line Status Indicator.pdf
2020-06-10 00:32
734K
Telephone Tester Detects Line Distortion.pdf
2020-06-12 20:42
437K
Remote Telephone Ear - Listen via Long Distance.pdf
2020-06-12 20:43
827K
Acoustic Protector Damps Telephone-Line Transients.pdf
2020-06-12 20:44
460K
Teleconferencing System.pdf
2020-06-26 04:23
154K
Telephone Recording Adapter.pdf
2020-07-17 04:43
1.0M
Phone Minder.pdf
2020-07-17 04:51
1.4M
Telephone Call Screener.pdf
2020-07-19 00:50
3.7M
Telephone Call Restrictor (2).pdf
2020-08-16 01:55
401K
Put Your Telephone On Hold Errata ME 1989-05.pdf
2020-08-18 22:33
58K
Automatic Hold Device Errata ME 1989-02.pdf
2020-08-21 21:27
134K
Phone Line 'Busy' Indicator Errata ME 1988-10.pdf
2020-08-25 21:40
141K
Isolating Telephone Extensions.pdf
2020-08-29 02:20
3.2M
Telephone Add On Devices.pdf
2020-10-21 04:15
247K
Telephone Operated Remote Power Switch.pdf
2020-10-21 22:01
5.3M
Telephone Dialer Vocalizer.pdf
2020-11-29 23:33
436K
No Wrong Numbers Telephone Accessory Part 2 RE 1984-04.pdf
2020-12-02 06:05
1.3M
Music On Hold Box.pdf
2020-12-20 04:36
3.8M
Musical Telephone Ringer.pdf
2020-12-27 00:40
560K
Phone Activated Night Light.pdf
2020-12-30 23:30
492K
Telephone Flasher.pdf
2021-01-24 02:34
448K
Dual- Application Telephone Security System Part 2 Errata ME 1990-7.pdf
2021-01-26 22:06
126K
Phone Activated Audio Muting Circuit.pdf
2021-04-02 23:31
806K
Telco Line Problems.pdf
2021-04-23 03:00
170K