Hi there! Although I’ve been playing around with Arduino for a while, I am completely new to sound engineering issues, which I am running into right now, so I hope some of you can shed some light on my project! This is what I intend to do: My goal is to have 3 old cord phones rung from an Arduino…

[image] Generating rings | Details | Hackaday.io Ringing the 100+ year old bells turned out to be one of the more challenging things to accomplish. Due to the vast distances that signals had to travel to reach rural subscribers in the late 1890's, the ring signal is actually 90 volts AC …

Ringing old phones from amplified audio - Amplification issues

Other Hardware Audio

Paul_KD7HB September 24, 2025, 2:01pm 14

Likely measured with DVM.

Topic		Replies	Views
Making (Old) Telephone(s) Ring General Guidance	12	11864	May 5, 2021
Arduino based phone ringer - advice? Motors, Mechanics, Power and CNC	1	3383	May 6, 2021
ringing phone General Guidance	8	5999	May 5, 2021
Driving antique phone bell General Guidance	10	7594	May 5, 2021
Reduced phone ringing voltage General Electronics	23	6478	May 6, 2021

Ringing old phones from amplified audio - Amplification issues

Related topics