This circuit is from a 60's documentation. The capacitance C1 can be between 20 pF and 0.01 uF depending on the generated frequency. Equivalent transistors may be employed.
Found in a 1968 documentation, this small amplifier was very popular at the time being used in...
Found in Electronics now, this circuit generates signals given by the formulas next to the...
The circuit shown can be used to send command pulses from a cogwheel or other sensor placed...