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LED spec for phone line?
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mike
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LED spec for phone line?
On 6/17/2012 4:32 PM,
wrote:
I want to put an LED to test my phone line, which I found to be ca 50v.
Where/how do I find the right LED?
THe LEDs at Radio Shack are all like 2v (yea I remember VCC of 2.3 on diodes
in my EE2 for non EEs course).
Should I just use a regular bulb, like the kind used for Christmas lights,
instead? (what about the LEDs used for CHristmas lights? Shouldn't they
work?)
Besides, I really only want ONE LED.
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A series resistor will answer your question.
Assume you now all about what happens when you load a phone line.
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