In the figure we have the way to implement a sinusoidal oscillator with the 4093 IC. The component values are given by the table. The circuit is from a Popular Electronics from the 90s.
The circuit in the figure is based on an LM101A; diodes can be replaced with equivalents. The...
This circuit, with magnetic sensor, uses an operational amplifier of the time. The circuit is from...
Found in a 90s Popular Electronics, this circuit checks if a remote-control transmitter is...