Circuit Bench

Articles
Title
Mixer with the LM3900 (CB14219E)
Voltmeter LM4250 (CB14177E)
10 Hz Wien Bridge FET Oscillator (CB14150E)
Gain Amplifier 20 (2) (CB14036E)
15-Channel Remote Control Receiver (CB13998E)
4.59 MHz XTAL Oscillator (CB13861E)
2 W Wien Bridge Oscillator LM377 (CB13845E)
Audible Voltmeter (CB13792E)
CMOS Operational Interface (CB13773E)
Vox or Sound Switch (CB13609E)
Voltage to Frequency Converter LM331 (CB14339E)
Alternating Flasher LM3909 (CB14281E)
Offset Adjustment on an Amplifier with the LM139 (CB14245E) In the figure we have the way of adjusting the input offset in an amplifier with gain 100 using a comparator LM139. The circuit is from National Semiconductor's Linear Applications
Variable Capacitance Multiplier (CB14130E)
Integrator (CB14104E)
Nicad Charger (CB14020E)
Thermometer LM3911 (CB13939E)
Programmable Gain Amplifier (CB13915E)
Motor Control with Feedback Using Triac (CB13806E)
PLL Frequency Divider usintg the 555 (CB13732E)
Flame Alarm (CB13715E)
Broadband Buffer (CB13645E)
Temperature Controller with RTD (CB14377E)
Coaxial Cable Driver (CB14354E)
High Voltage Regulator (CB14323E)
Power supply 15 + 15 V x 1 A LM340-15 (CB14259E)
Low Frequency Mixer (CB14220E)
Gain 10 Amplifier with Drift Compensation (CB14067E)
Temperature Sensor Interface (CB14037E)
Standing Wave Ratio Meter (CB13999E)

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