On Tue, 25 Jan 2011 14:13:47 -0700, Jim Thompson
wrote:
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
Solved. Bought 10 units (five phone locations, 2-lines) from Hong
Kong at $5 each. Loud!
Next problem:
I need a circuit that closes a relay after X rings, X adjustable.
As before, line-powered preferred.
Helpful to the solution, I think, relay needs to close for no more
than maybe one second ;-)
...Jim Thompson
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