Am 25.01.2011 22:13, schrieb Jim Thompson:
Anyone have a favorite circuit for a remote telephone ringer?

I have access to the phone line, but no close-by source of power, so
telephone line-powered or low battery drain.

Commercial purchase also OK.

Suggestions?

...Jim Thompson
You can hook up to 3 or more phones in parallel on the line. (so there´s
enough power)
Using the capacitor+ringer from an old phone would be enough.
You have up to 60vpp on the line during ringing.
Imporant is that you shouldn´t build a DC path in parallel.
You can use (AC ring+capacitor in series) in parallel or capacitor +
rectifier + DC ringer.