The build uses an old AT&T Trimline dialer, though we’re sure most rotary phones would work. The pulses produced by the dialer are counted by a Teensy microcontroller, which emulates a USB HID ...

you can still buy rotary phones (BoldOldPhones is one site that specializes in them). Despite being a relic from the past, we still hear phrases like “dial 911” and I have to wonder how long ...

Introduced in the early 1900s, rotary phones were commonly used from the 1920s until the 1960s, when dial phones were gradually replaced with push button phones (see Touch-Tone). THIS DEFINITION ...

A frustrated Justine Haupt came up with an unorthodox solution: she designed and built a mobile phone with a rotary dial that ...