| Parent directory/ | - | - |
| Phone Hold with Music.gif | 5.1 KiB | 2011-Sep-28 15:00 |
| Phone Status Indicator.gif | 6.6 KiB | 2000-Dec-07 23:41 |
| Phone Status Light.pdf | 9.9 KiB | 2004-May-31 01:31 |
| Voice Scrambler-Descrambler.pdf | 16.6 KiB | 2024-Jun-11 23:59 |
| Losses In Early Telephone Lines.PDF | 16.9 KiB | 2004-Jan-29 18:28 |
| SUCTION CUP PHONE PICKUP.pdf | 24.1 KiB | 2021-Aug-14 23:17 |
| Voice Scrambler-Disguider.pdf | 25.7 KiB | 2024-Jun-12 00:00 |
| Telephone-Related Ascii Schematics.pdf | 40.0 KiB | 1999-May-17 11:22 |
| Ringing Phone Light Flash.pdf | 47.7 KiB | 1998-Sep-10 22:15 |
| Telephone Call Recording Adapter.pdf | 49.7 KiB | 2003-Oct-03 01:56 |
| Telephone Line Interface.pdf | 51.0 KiB | 2009-May-07 23:35 |
| DTMF DECODING & DISPLAY.pdf | 53.2 KiB | 2021-Aug-14 23:18 |
| Remote Telephone Ringer.pdf | 56.7 KiB | 2009-Jun-30 00:45 |
| Protect the Calling Bell and Ears Too.pdf | 61.8 KiB | 2023-Oct-15 21:21 |
| Add a Distinctive Ring to your Phone.pdf | 77.6 KiB | 2009-Jun-30 00:46 |
| Optically Coupled Phone Ringer.pdf | 81.8 KiB | 2009-Jun-30 01:43 |
| Opto Isolator Circuit Shows Phone Line Status.pdf | 85.2 KiB | 2009-Jun-30 01:48 |
| Telephone Ring Detector.pdf | 88.7 KiB | 2009-Feb-13 00:28 |
| Isolated indicator signals telephone line's status.pdf | 98.6 KiB | 2023-Nov-10 20:14 |
| Automatic Phone Disconnector.pdf | 103.2 KiB | 2022-Apr-06 01:41 |
| Recreating Sound.pdf | 122.9 KiB | 2009-Sep-12 00:50 |
| Telephone Bell Extender.pdf | 125.1 KiB | 2009-May-24 23:04 |
| Teleconferencing System.pdf | 154.1 KiB | 2020-Jun-26 00:23 |
| The Teleguard Auto Dialer Part 2 Conclusion ME 1985-07.pdf | 156.8 KiB | 2023-Sep-25 23:04 |
| Telco Line Problems.pdf | 169.5 KiB | 2021-Apr-22 23:00 |
| Experimenting with a Touch -Tone DTMF Receiver.pdf | 174.5 KiB | 2023-Jun-20 00:15 |
| Phone Ring Visual Indicator for Landline Phones.pdf | 178.9 KiB | 2022-Nov-16 19:40 |
| Telephone Hold Fearure for Land-Lines.pdf | 193.7 KiB | 2023-Nov-02 16:43 |
| Phone Line Sentinel.pdf | 197.3 KiB | 1999-Mar-11 16:32 |
| Phone Line Monitor.pdf | 211.0 KiB | 2007-Feb-01 00:05 |
| Telephone Ringing and Speech Circuit.pdf | 214.0 KiB | 2020-Jun-02 19:30 |
| Make a Phone Ring to a Simple Tune.pdf | 218.7 KiB | 2020-Jun-02 19:33 |
| Telephone Status Monitor.pdf | 224.3 KiB | 2010-Jul-01 01:51 |
| Electronic Ringer for Telephone Lines.pdf | 225.7 KiB | 2007-Feb-26 01:00 |
| Cordless Phone Supposed Hazards.pdf | 233.6 KiB | 2009-Jan-14 01:56 |
| Telephone Flasher (2).pdf | 233.6 KiB | 2022-Feb-01 00:59 |
| Telephone Record-Play Accesory.pdf | 246.5 KiB | 2009-Jul-23 00:07 |
| Telephone Add On Devices.pdf | 247.5 KiB | 2020-Oct-21 00:15 |
| The Life of a Phone Hacker.pdf | 250.6 KiB | 2009-Jun-30 01:11 |
| Wireless Remote Telephone Ringer.pdf | 267.9 KiB | 2023-Apr-07 22:46 |
| Telephones & Their Repair Part 1 ME1986-03.pdf | 269.6 KiB | 2022-Nov-09 01:24 |
| Telephones and Their Repair Part 1 ME 1986-03.pdf | 269.6 KiB | 2023-Apr-07 16:24 |
| Telephone Bell.pdf | 270.8 KiB | 2021-Jul-12 19:19 |
| Lock for Landline Phones.jpg | 272.0 KiB | 2024-Apr-04 20:02 |
| Tone RInger for Classic Phones.pdf | 289.6 KiB | 2022-Oct-12 22:18 |
| Telephone Line Tester.pdf | 303.0 KiB | 2009-Jun-30 01:17 |
| Phone Miser for older Analog Phone Systems.pdf | 328.9 KiB | 2023-Sep-29 22:03 |
| Telephone Technology Conclusion - Landlines ME 1984-09.pdf | 335.9 KiB | 2023-Aug-08 23:05 |
| Telephone Eavesdropper.pdf | 348.7 KiB | 2022-Oct-20 22:26 |
| Off-Hook Phone Alert.pdf | 357.7 KiB | 2023-Apr-05 21:54 |
| Telephone Repeater - Landlines.pdf | 382.2 KiB | 2024-Apr-07 18:08 |
| Telephone Minder for Analog Landline Phones.pdf | 391.7 KiB | 2023-Jul-31 21:40 |
| Add Speakerphone Function to a Landline Phone.pdf | 397.6 KiB | 2022-Nov-12 01:58 |
| Telephone Call Restrictor (2).pdf | 401.4 KiB | 2020-Aug-15 21:55 |
| Teleguard.pdf | 420.1 KiB | 2022-Jan-30 00:41 |
| All About Telephones and How to Repair Them Part 2 ME 1986-04.pdf | 430.8 KiB | 2023-Jul-12 22:12 |
| Telephone Dialer Vocalizer.pdf | 435.7 KiB | 2020-Nov-29 19:33 |
| Telephone Tester Detects Line Distortion.pdf | 437.0 KiB | 2020-Jun-12 16:42 |
| Telco In A Box.pdf | 444.7 KiB | 2011-Jul-02 20:51 |
| Telephone Flasher.pdf | 448.1 KiB | 2021-Jan-23 22:34 |
| Acoustic Protector Damps Telephone-Line Transients.pdf | 459.5 KiB | 2020-Jun-12 16:44 |
| Music on hold Adapter for Analog Telephone Lines.pdf | 479.3 KiB | 2020-Mar-23 20:23 |
| Telephone Amplifier - Landlines.pdf | 490.0 KiB | 2024-Apr-07 18:11 |
| Phone Activated Night Light.pdf | 492.0 KiB | 2020-Dec-30 19:30 |
| Telephone Technology Part 1 ME 1988-08 - Landlines.pdf | 505.6 KiB | 2023-Apr-07 22:42 |
| Telephone Hold Button.pdf | 534.5 KiB | 2020-Mar-15 17:53 |
| Caller ID Tech Info.pdf | 540.5 KiB | 2009-Aug-29 17:18 |
| Musical Telephone Ringer.pdf | 559.6 KiB | 2020-Dec-26 20:40 |
| The Phone Sentry.pdf | 564.7 KiB | 2009-Nov-26 02:48 |
| Phone Lock.pdf | 621.6 KiB | 2020-Jun-02 20:02 |
| Telephone Line Grabber.pdf | 697.8 KiB | 2016-Oct-16 17:14 |
| Tele-Toll Timer.pdf | 709.6 KiB | 2009-Apr-11 00:40 |
| Isolated Phone Line Status Indicator.pdf | 733.9 KiB | 2020-Jun-09 20:32 |
| Phone Activated Audio Muting Circuit.pdf | 805.5 KiB | 2021-Apr-02 19:31 |
| Inside The Telephone.pdf | 812.1 KiB | 2002-Jan-20 03:05 |
| Remote Telephone Ear - Listen via Long Distance.pdf | 827.4 KiB | 2020-Jun-12 16:43 |
| Phone Beeper for Recording Calls.pdf | 908.6 KiB | 2020-Jun-09 20:25 |
| Distinctive Ring Decoder.pdf | 910.2 KiB | 2009-Nov-26 00:15 |
| Telephone Call Timer.pdf | 940.1 KiB | 2020-Jun-02 20:00 |
| Telephone Quality Assessments.pdf | 948.3 KiB | 2023-Nov-16 18:17 |
| Phone Sentry.pdf | 954.3 KiB | 2020-Feb-07 19:03 |
| Telephone Pickup for Dial Phones.pdf | 957.7 KiB | 2020-Jun-09 20:18 |
| Telephone Amplifier.pdf | 973.7 KiB | 2020-Jun-04 16:45 |
| Telephone Call Restrictor.pdf | 1011.4 KiB | 2010-Sep-15 00:00 |
| Music On Hold Telephone Accessory.pdf | 1.0 MiB | 2020-Jun-02 20:07 |
| Telephone Recording Adapter.pdf | 1.0 MiB | 2020-Jul-17 00:43 |
| Telephone Bell Extender (2).pdf | 1.1 MiB | 2020-Jun-02 19:56 |
| Telephone Audio Interface.pdf | 1.2 MiB | 2020-Feb-09 19:17 |
| The Party Line Phone Line Simulator.pdf | 1.2 MiB | 2016-Oct-16 16:42 |
| No Wrong Numbers Telephone Accessory Part 2 RE 1984-04.pdf | 1.3 MiB | 2020-Dec-02 02:05 |
| Super Hold tor Telephone.pdf | 1.4 MiB | 2020-Mar-23 19:53 |
| Home Intercom Using Analog Telephones.pdf | 1.4 MiB | 2020-Mar-07 02:24 |
| Telephone Exchange.pdf | 1.4 MiB | 2023-Apr-26 22:06 |
| Phone Minder.pdf | 1.4 MiB | 2020-Jul-17 00:51 |
| Plug-In Remote Ringer.pdf | 1.5 MiB | 2020-Jun-02 19:52 |
| ISDN Prototyping Telephone.pdf | 1.5 MiB | 2021-Nov-21 02:17 |
| Telephone Line Simulator.pdf | 1.5 MiB | 2014-Feb-09 02:11 |
| Call Director.pdf | 1.9 MiB | 1998-Jun-30 02:31 |
| Music On Hold Adapter.pdf | 1.9 MiB | 2020-Feb-07 19:03 |
| Automatic 4 Line Telephone Selector.pdf | 1.9 MiB | 2020-Jan-31 17:16 |
| DTMF Phone Pad.pdf | 2.0 MiB | 2020-Feb-12 00:00 |
| Turn On Appliances Via Long Distance.pdf | 2.0 MiB | 2020-Jun-02 19:49 |
| Phone Line Simulator.pdf | 2.1 MiB | 2020-Feb-01 02:00 |
| Phone Pager.pdf | 2.5 MiB | 2020-Feb-01 21:39 |
| Telephone Line Controller.pdf | 2.8 MiB | 2019-Jun-03 23:45 |
| How Landline Telephones Work.pdf | 3.0 MiB | 2022-Feb-01 01:15 |
| Isolating Telephone Extensions.pdf | 3.2 MiB | 2020-Aug-28 22:20 |
| Telephone Call Screener.pdf | 3.7 MiB | 2020-Jul-18 20:50 |
| Landline phone patch for Ham radio rig ETI734.pdf | 3.7 MiB | 2023-Sep-06 00:12 |
| Music On Hold Box.pdf | 3.8 MiB | 2020-Dec-20 00:36 |
| Telephone Usage Monitor and Controller.pdf | 4.1 MiB | 2020-Mar-19 17:56 |
| Telephone Scrambler.pdf | 5.0 MiB | 2018-Jun-21 22:02 |
| Telephone Operated Remote Power Switch.pdf | 5.3 MiB | 2020-Oct-21 18:01 |
