RF Receiver Circuits

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100W Audio Amplifier
HiFi stereo preamplifier with tone control
3V to 9V DC Converters
simple frequency counter circuit
Dark detector circuit
Touch sensor switch using inverters
Hijack Alarm
170W Class D Amplifier schematic diagram
HF linear amplifier circuit
The LED car voltmeter (3)
TDA8351 8356 application circuit
Three phase torque motor speed control circuit