Make Old Landline Phone RING

[@Hugatry]

Schematic is seen at 4:45. Based on simulation and my limited real world testing, this should work fine. If anyone thinks otherwise, please leave a comment! I was able to find project descriptions where people have made the phone ring OR read the hook, but not a single one that does both without modifying the phone's internals.

[@t1d100]

A fun and well done project. Bravo. Occasionally, you will also find a phone system controller box, at the thrift stores, as well. I forget the proper name for the device, but its functions were things like adding a "hold" line, directing a call to a particular extension, tying in the on-hold music system, etc. I wonder, if one of these boxes might be helpful?

[@Hugatry]

Thanks! That sounds interesting device. Imagine having an intercom system at home (like Thomas Burns made in one of his videos) and being able to play on-hold music to the other person!

[@thesidd19]

Thanks

[@0ctoEyes]

I'd be really interested in getting one of these for a project I'm working on. Is the PCB available?

[@argentinomacrifuevidaltamb3772]

Disculpa pero esta mal tu circuito, el transformador debería ser de 600 Ω 1x1 = 600X600 Ω para acondicional la impedancia. Cualquier impedancia o capacitancia diferente el proveedor te retiene la linea.

[@Hugatry]

Thank you for the feedback. I would agree with that, if we were connecting something to an actual landline / phone line that goes out to the exchange. But I don't know if ringer circuits should be used in that situation. Anyway, this circuit is used with phone that IS NOT connected to anything, other than this circuit... An isolated system. I should have mentioned that more clearly in the video.