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Articles
Title
792 or 592 Preamplifier (CB25470E)
TDA2002 5W Amplifier (CB25937E)
Jacob's Ladder (CB25903E)
AC Switch with Triac (CB25855E)
Self-biasing JFET circuit (CB25563E)
555 2-Range Relay Up to 10 Minutes (CB25535E)
LM3914 Moving Point Voltmeter (CB25450S)
Variable Flasher LM3909 (CB25425E)
5 V Power Supply (CB25403E)
DC voltage follower with LM741 (CB25923E)
Heater control with CA3058 (CB25879E)
IR Remote Control Transmitter (CB25784E)
Stepper motor as encoder (CB25685E)
Clapp Oscillator (CB25647E)
Bootstrapped Emitter Follower Stage (CB25619E)
800 Hz Sine Oscillator (CB25580E)
Latching Photo Sensor (CB25476E)
Variable Active Filter (CB25359E)
Low Noise Preamplifier for Magnetic Capsule (CB25830E)
Alternate VCO (CB25756E)
Electronic Face (CB25735E)
Two White Noise Generators (CB25710E)
Astable with Duty Cycle (CB25656E)
Audio Mixer (CB25609E)
Heartbeat Detector (CB25472S)
0 to 10 V Voltmeter with LM3914 (CB25451S)
5 to 200 V Flasher (CB25426E)
Sinusoidal oscillator 741 (CB25404E)
LM377 Stereo Amplifier (CB25938E)
Infrared Logic Probe (CB25904E)

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  • Two tone siren (CB9085E)     This circuit was found in a 1980’s Radio Electronics. The signal must be applied to an amplifier stage. Capacitors can be changed to change effects. img src="images/stories/bc/144064"

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