[Laser] CDS Cell?

Andrew T. Flowers, K0SM [email protected]
Wed, 02 Apr 2003 13:48:07 -0500


Some good info on CdS cells in this QEX article from NU1N:
http://www.arrl.org/tis/info/pdf/9009019.pdf

I remember playing with a light-sensitive oscillator I put together 
years ago.  There was definately a lag between removing the light source 
and the response of the oscillator--a second or two if I remember 
correctly.  I'm sure it could be used for communication, just so long as 
you don't mind going really slowly.  My guess is that the smaller the 
component is the faster it will respond.

Andy K0SM/2