Search found 2 matches

by crenshrd
Sun Dec 14, 2003 10:54 am
Forum: General Discussion
Topic: LED extender
Replies: 5
Views: 2603

Re: LED extender

Thanks to Russ and Chris for their response but I can't alter the telephone and I was looking for for a semiconductor solution. Maybe an LDR that turns a transistor off and on. I am willing to provide a external power source. I tried photodiodes and photocells with a transistor but all I got was an ...
by crenshrd
Fri Dec 12, 2003 8:50 am
Forum: General Discussion
Topic: LED extender
Replies: 5
Views: 2603

LED extender

I have a telephone at work that has a very small led to indicate voice mail. I would like to get a circuit diagram of a device that can detect this LED and light up a jumbo LED. I have about a 1 inch square area to place the detector. Any ideas?