Phototransistors Components

Also:

• Sensors
• Light Sensors

See also:

• http://circuits.cf.ac.uk/eLab/opto/opto.htm Optical logic experiments
• http://home.ust.hk/~bcandyp/darkdetector.html Solar or battery darkness activated flasher
• http://www.aaroncake.net/circuits/lightdrk.htm Light / Dark detector
• http://www.engr.udayton.edu/faculty/jloomis/ece445/topics/egginc/pt_app.html Phototransistor applications