Found in a 1969 British publication, this circuit uses a regenerative switch with two transistors to produce pulses that depend on C1. The relay must be in accordance with the supply voltage.
No information was given on the inductor enrolled in the common core of this circuit two years 80. The...
This photoelectric circuit was found in a 70’s Ferranti's documentation. The circuit uses an...
Originally suggested by Popular Electronics to control Christmas lights, this circuit can...