This circuit detects changes in the active cycle of the input signal. The circuit was obtained in a 1966 EEE. Transistors are general purpose types of the time.
This circuit was found in an old manual and can be applied to any operational amplifier. The power...
This circuit uses a JFET at the input to increase the impedance. The circuit has a gain voltage...
An excellent low frequency sine signal is produced by this oscillator. The frequency is determined by the...