03-09-2009, 11:43 PM
Infrared Remote Control
The transmitter circuit includes IR LED, 2N2222 NPN Silicon Transistor , 2N2907 PNP Silicon Transistor.When the switch S1 presses LED emits IR light. The receiver part mainly consists of LM308 Op Amp IC , LM567 Tone Decoder, and NPN Phototransistor and a relay.
http://pptpdf.net/subcategory.php?categ=...ct%20list1