Comment on Question about analog voltmeters and antique telephones

despoticruin@lemmy.zip ⁨2⁩ ⁨weeks⁩ ago

It’s looking like you are going to want to hook the volt meter up to your talk lines. I would test just probing the wires going to the handset, if I understand the schematic correctly the talk circuit is separate from the ringer. That being said, you can get a voltmeter that is tolerant of the voltage.

As far as blinking on ringing, that one is super simple since the ringer is AC, just use an induction type detector to flash an LED on. Think along the lines of those screwdriver looking line voltage testers that light up when you put them next to a live outlet.

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