Maker Pro
Maker Pro

Phone Jack light!

Warmoose

Aug 26, 2010
2
Joined
Aug 26, 2010
Messages
2
So I've seen this in a couple places and was wondering if I could get specifics for this project.
I'm a complete electronics noob, but list me off some parts to get and I'll be able to throw this thing together easily. Ill post the 2 sites I've seen it on here. The first site is kind of hard to maneuver. At the top click "How-To Videos" and its the last video in the collection.

http://g4tv.com/effinscience/

And

http://www.wonderhowto.com/how-to-get-free-electricity-from-phone-jack-127041/

Thanks!
 

Externet

Aug 24, 2009
823
Joined
Aug 24, 2009
Messages
823
Many ways to do it.
From simply connecting a up to 40mA LED directly to the telco line at the proper polarity, and render your telephone line inoperative in exchange to have a pretty light on;
or other ways, as to tell if the line is busy ; by connecting a 15 V zener and a resistor in series with the led for 1mA current, will turn on when not busy.
 

Warmoose

Aug 26, 2010
2
Joined
Aug 26, 2010
Messages
2
I'm looking for just the pretty light on. Any way you could break that down for me?
 
Top