The integrated circuit used in this amplifier is not very common today. This amplifier was found in the 1977 National Semiconductor Audio Handbook. The power source must be at least 500 mA.
This decoder for FSK modulated signals can operate at frequencies of 10.8 MHz. We find it in...
We found this circuit in a 1965 publication by General Electric. The zener is 8.2 V x 1 W and the...
Found in an Electronic World, this circuit is designed to control solenoids up to 5 A. The circuit...