Uploaded November 2022 | Updated September 2026, 2 weeks ago
PCBWay Supports High Precision Advanced PCBs: pcbway.com
After months of experiments, here's the first prototype circuit to simulate a plain old telephone service to get old phones operating without a land line service.
It can generate voltages to operate a phone, including ring voltages and on/off hook voltages/current.
When two of these central office circuits are put to use, each controlling a dedicated phone and then communicating with each other, one phone can dial another and establish a connection.
Playlist of videos documenting the hardware/software development: youtube.com/playlist?list=PLjJ5BDlAoGarnVThQQigLQh1viLgSvlCM
Sketch/schematic: github.com/GadgetReboot/misc_file_bin/tree/master/2022_11/Telephone_Central_Office_wip
KS0835F SLIC module: https://s.click.aliexpress.com/e/_DFeMKoP
If you'd like to support the channel, you can:
Support me on Patreon: patreon.com/gadgetreboot
Become a channel member (click the Join button): youtube.com/c/GadgetReboot
Shop through my affiliate links (I may earn a small commission, costs you nothing)!
Banggood banggood.com/custlink/3vKYLANH8N
Aliexpress https://s.click.aliexpress.com/e/_AFeHwB
Amazon.com amazon.com/?&_encoding=UTF8&tag=gadgetreboo05-20&linkCode=ur2&linkId=952875a3564e2204d1786f94b9e1a8d3&camp=1789&creative=9325
Amazon.ca amazon.ca/?&_encoding=UTF8&tag=gadgetreboot-20&linkCode=ur2&linkId=70fa82315ac48f03342938bd4fb93535&camp=15121&creative=330641
Videos are mirrored at LBRY/Odysee: odysee.com/@GadgetReboot:4
#ElectronicsCreators
PCBWay Supports High Precision Advanced PCBs: pcbway.com
After months of experiments, here's the first prototype circuit to simulate a plain old telephone service to get old phones operating without a land line service.
It can generate voltages to operate a phone, including ring voltages and on/off hook voltages/current.
When two of these central office circuits are put to use, each controlling a dedicated phone and then communicating with each other, one phone can dial another and establish a connection.
Playlist of videos documenting the hardware/software development: youtube.com/playlist?list=PLjJ5BDlAoGarnVThQQigLQh1viLgSvlCM
Sketch/schematic: github.com/GadgetReboot/misc_file_bin/tree/master/2022_11/Telephone_Central_Office_wip
KS0835F SLIC module: https://s.click.aliexpress.com/e/_DFeMKoP
If you'd like to support the channel, you can:
Support me on Patreon: patreon.com/gadgetreboot
Become a channel member (click the Join button): youtube.com/c/GadgetReboot
Shop through my affiliate links (I may earn a small commission, costs you nothing)!
Banggood banggood.com/custlink/3vKYLANH8N
Aliexpress https://s.click.aliexpress.com/e/_AFeHwB
Amazon.com amazon.com/?&_encoding=UTF8&tag=gadgetreboo05-20&linkCode=ur2&linkId=952875a3564e2204d1786f94b9e1a8d3&camp=1789&creative=9325
Amazon.ca amazon.ca/?&_encoding=UTF8&tag=gadgetreboot-20&linkCode=ur2&linkId=70fa82315ac48f03342938bd4fb93535&camp=15121&creative=330641
Videos are mirrored at LBRY/Odysee: odysee.com/@GadgetReboot:4
#ElectronicsCreators
