Representative part is pictured.
Postage is priced by weight and the first pound is far more expensive than 2nd and 3rd pound.
THE MOST USEFUL PART IN YOUR PARTS BIN!
SCROLL DOWN FOR MANY HINTS AND USEFUL CIRCUITS.
LM2902 LM324 Wavelength Tuned Optical Pulse Detector
* From 2005 Electronic Design Economical Circuit Captures Light Pulses
LM2902 LM324 High Speed Solar Tracking Controller
* From LEDFAST Acting Analog Solar Tracker
LM2902 LM324 Pulse Width Modulated Fan Speed Controller
* From www.cpemma.co.uk A Practical PWM Circuit
LM2902 LM324 Single 5V Supply General Applications
* From National Semiconductor data sheet LM2902-LM324.PDF