Introduction: FREE Hidden Electricity!
Step 1: What You Need...
1. Small project enclosure
2. (1) 240ohm resistor
3. (1) 510ohm resistor
4. (1) LM317L Regulator
5. (1) KBP210 Bridge Rectifier
6. (2) Phone line cables
Step 2: The Schematic...
I connected the Positive end to one line of the female phone jack and the negative to the other. You could wire it directly to your light but I chose to do it this way so I could test other sources with just a phone jack interface cable. The Red and Green go to corresponding colors on the phone line that plugs into the wall.
Step 3: Final Steps...
Mount the circuit in the project box and run your wires through two small drilled holes. Be sure to tie knots in the wires inside the box to prevent them from pulling out.
Step 4: Interface Cable...
I made an interface cable from an old wall adapter and phone line to connect the light to the box.
Step 5: Test It Out!
After wiring the LED's in parallel, I plugged everything in and it worked great! It even powered off when the phone was picked up and flashed when it rang. While this won't power your new 60" HD Plasma TV, it will power small amperage electronics and could come in handy if the power goes out! Enjoy your FREE source of power.
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