This is the old name given to flip-flops or biestable multivibrators. In fact, this is a 1967 Ferranti circuit, triggered by a light sensor.
Found in Linear Technology documentation from the 90s, this circuit uses an operational amplifier...
This circuit is from Mullard 1969 documentation. The circuit operates at a relatively high supply...
The figure shows the basic circuit of a relaxation oscillator with operational amplifier. The...