| T O P I C R E V I E W |
| rjt |
Posted - Jan 12 2009 : 11:21:56 PM
Hi, arron is there any way i can use Telephone line to lit a CFL tube(preferred) or the LED ?
Can u plz provide me the circuit ?
thank u, waiting for ur reply |
| 3 L A T E S T R E P L I E S (Newest First) |
| audioguru |
Posted - Jan 13 2009 : 9:48:45 PM
Since your electricity is blacked out for more than half of every day, then you must live on Mars or in a very poor 5th world country.
Your telephone system is probably also in pieces.
You can try to connect a few LEDs in series with a current-limiting resistor to the telephone line in the correct polarity. The LEDs will be dim. |
| rjt |
Posted - Jan 13 2009 : 09:47:14 AM
Thanx guru for replying so fast,
Can u please provide me the circuit for LED Light and also on how do i choose the resistor/diode depending on voltage on my Phone Line.
btw is there any bulb that i can use that can lit brighter bulb (no prob if the phone gets busy, i am facing 16hrs of blackout daily ;) ) |
| audioguru |
Posted - Jan 13 2009 : 12:13:12 AM
A CFL needs about 13W to light if it is a 13W bulb. A telephone line can provide maybe only 1W at 25V so it will not light a CFL.
A telephone line can light an LED or a few LEDs in series but then the current will cause the line to be busy. |
