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Phone Line audio coupler - EasyEDA
https://easyeda.com/dav0/Phone_Line_audio_coupler-598a2d7be4ab4f07b8d4eb507171ff61
ID Name Designator Footprint Quantity; 1: 220: R1: AXIAL-0.6: 1: 2: RJ11: RJ1: 6P4C: 1: 3: 2W10: D1: BRIDGE-WOB: 1: 4: SWITCH-6x6x5_TH: SW1: SWITCH-6X6X5_TH: 1: 5 ...
Phone Line Basics: Revisited | News & Reviews - JK Audio
https://www.jkaudio.com/article_10.htm
In order to send and receive audio through the pair you must use a two wire to four wire hybrid circuit which converts the pair into separate transmit and receive audio paths. Bulky and expensive hybrid transformers have been replaced in most telephones by …
CircuitWerkes TELTAP Phone Line Monitor and Manual Coupler ...
https://proaudio.com/circuitwerkes-teltap-phone-line-monitor-and-manual-coupler/
Overview. The CircuitWerkes TelTap is a versatile and inexpensive telephone coupler. Once connected to a standard RJ-11 plug, the user has a choice of seizing the phone line or just tapping the line. The TelTap can be used to either send or receive audio regardless of which mode is selected. Internal jumpers let you choose how the TelTap operates. You can set the second …
Recording and Playback to and from Phone Lines and …
https://www.sandman.com/record.html
To play the audio from a PC or PA system over the phone line, all of the audio sent to the 3.5mm Stereo Cord will be heard by the person on the phone line. Connect it to the headset jack on a tape recorder, Line Out or Speaker Out on a PC sound card, or a 600 ohm line level output on a PA amplifier (don't connect it to a 70V speaker line output, but it will probably work OK on an 8 …
Telephone interfacing circuits - Audio | Video | Circuits
https://www.epanorama.net/circuits/teleinterface.html
The bell circuit is either designed so that it has high impedance in audio frequencies or it is disconnected from line when phone is picked off-hook. For more information about telephone ringing take a look at my telephone ringing circuits web page.
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