Audio Circuits

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Servo motor drive amplifier
50Mhz-trigger
Low-frequency-tachometer
Telephone-amplifier
F232 is USB powered
25 Watt Power Inverter Circuit
The high-accuracy arbitrary waveform generator based on DDS is designed
ic speech
15db uhf tv antenna booster
coil coupled operation metal
I2C Anemometer cheap wind data logger
Contrast Control for LCDs
Light dimmer circuit
Courtesy Light Extender



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