Security Circuits

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Lead Acid Battery Charger with LED indicator
LED Flashlight circuit with MAX1811
Precision frequency-to-voltage converter
Door open alarm
Stereo Mixer With Pan Controls
Schematic Diagram TA8122 AM-FM radio receiver circuit
variable voltage regulator circuit
Two star flasher circuit
interfacing relay 8051 keil c
Mini stroboscope
Geiger Counter
Model Theatre Lighting Dimmer
5 Zone Alarm System
Gas stove flame alarm circuit
100v / 10ma regulator circuit