Circuit Bench

Articles
Title
741 Twin T Variable Filter (CB25604E)
Audio Level Controller (CB25551E)
555 Doorbell (CB25531E)
800 Hz Tone Generator (CB25518E)
5 LED Log Scale with U257B (CB25442E)
Symmetrical 12 V power supply (CB25402E)
Variable Wien Bridge Oscillator (CB25964E)
4018 Digital Sine Wave Signal Generator (CB25916E)
High Precision Resistor Matcher (CB25897E)
Variable High and Low Pass Filter (CB25823E)
Frequency Doubler (CB25778E)
Tuned Shortwave Antenna (CB25749E)
Delayed Pulse Generator (CB25729E)
741 Logarithmic Amplifier (CB25723E)
White Noise Generator (CB25679E)
Switch-Triggered Flip Flop (CB25674E)
Fourth-Order High Pass Filter 741 (CB25597E)
IR Sensor with 741 (CB25575E)
Audio Interface with Optocoupler (CB25495E)
Precision Thermoelectric Sensor (CB25464E)
Double 1 Hz flashing with 555 (CB25420E)
15W Inverter (CB25380E)
Two conventional 78xx power supplies (CB25958E)
LM741 Second-Order Low-Pass Filter (CB25931E)
ICL7660 Positive Voltage Multiplier (CB25848E)
LM3876 Amplifier (CB25725E)
XR2206 Function Generator (CB25703E)
Frequency-Corrected Astable (CB25651E)
40 uA Shield (CB25633E)
Series Crystal Butler Oscillator (CB25557E)

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