Institute Newton C. Braga

Circuit Bench

4.5 W amplifier with LA4430 (CB15730E)
This amplifier is suggested by Sanyo and can excite loads of 4 ohms with a power of 4.5 Wrms. The...
150 Hz to 1.5 kHz Operational Wien Bridge Oscillator (CB12424E)
Found in a 1995 Hands-On Electronics, this circuit generates a sinusoidal signal whose frequency...
LM339 Voltage Controlled Oscillator (CB19094E)
This circuit is based on the voltage comparators contained in the LM339 integrated circuit. The...