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Fuzz-box circuit
Battery Volt Meter
TDA1554 / 22W Stereo Amplifier
Ultrasonic-receiver
ac-motor-control-circuits
Data logging with an EEPROM
not so tiny power meter
500 mW VHF Video Transmitter
Electronic Tachometer
PWM power controller
MICROPOWER METAL DETECTOR
Low-noise preamplifier circuit
A typical circuit for the LM4910 two-channel amplifier



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