Night circuit diagram showing target

Posted on Mar 28, 2007

As shown, this circuit is suitable for shooting at night and turned on the lights corridor. During the day due to sufficient light, BG3 conduction, SCR blocking oscillation cir

Night circuit diagram showing target
Click here to download the full size of the above Circuit.

cuit by an IC or the like can not work without voltage, so light is not on. Night, since BG3 off, SCR triggered by conduction, so by the oscillation start oscillation circuit composed of IC, etc., IC 3 ultra-low frequency square wave output continuously, the frequency f 1/T 1.44/(W + Ra + 2Rb ) C, the IC can be seen between 3 and connected to the LED twinkling light, very eye-catching. Ra Rb as C1 adjust the size of flash frequency can be changed.

Leave Comment

characters left:

New Circuits



Popular Circuits

1.2 - 15V/3A variable and regulated PS
Low battery indicator
Wireless alarm FM transmitter module
Simple Emergency Lamp
Telephone in use indicator
Timed Beepers
LA1800 portable am fm radio circuit design electronic project
auxillary fuse lighter fuse burned out
Oscillation Monitor
The Transistor Amplifier-P2
Schumann Resonance Converter
Structure and working principles of various protective circuit diagram e