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Light/Dark detector using an op-amp
LM741 Op Amp on a breadboard
DARK/LIGHT SENSOR BASED ON the LM741 opamp
Active Band-Pass Filters
Floppy Disk Lamp
how to make led's pulse on bass
DIY Pocket Sized Anti-Theft Alarm !
Super loud security alarm
High Frequency Function Generator with the Maxim MAX038
Posted:Oct 8, 2010
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