Voltage at wall phone jack

[griff]

Can the current from a wall phone jack light a LED on a star ??
please help with this idea by telling me what direction to go.
I'm looking for a simple circuit to make a nightlight for the kids!

 

[65535]

The phone line runs about 45volts, but it does funky things when it rings or when you make calls.

 

[gdict]

the phone line runs at 45VDC or so but drops in voltage when connected to the CO. The ring comes over at something like 70VAC. You would need to build a circuit that isolates the DC voltage.

Anyway, if you use the power for something like a nightlight, you are stealing power from the phone company and opening yourself up to criminal prosecution......

 

[JohnR66]

Forget the phone line. The current is low and ring detection and use might be affected by the load. Just use a wallwart. It should cost less than 50 cents per month to run.