[Laser] Ramsey transmit to CdS
Walt Rauscher
[email protected]
Thu, 4 Dec 2003 09:15:27 -0500
Always like to know what people are experimenting with and the results.
Its also the adage of you don't know what might work until you try it.
Another sensor that works well is a photo voltaic cell, the kind to make
electrity from sunlight. I had used them a few times in college Physics lab
as a light amplitude detector and use one plugged into a Radio Shack audio
ampifier box as a simple laser comm receiver (cw keyed 800Hz). The frequency
response is good and they have a large area. I believe that they do not have
the low dark current necessary for very weak signal detection. Might be
worth trying.
walt, N3EVV
http://mailman.qth.net/mailman/listinfo/laser