Found in a 1967 EEE, this circuit uses the signal from the alternating current power grid to produce pulses from a Unijunction. The circuit is directly excited by the mains voltage.
Counting up to numbers lower than 10 [between two and nine] can be done by connecting the n+1...
This circuit was found in a 1967 General Electric manual. It shows a SCR control with unijunction...
August 2017 - This Maxim component, available from Mouser Electronics, is ideal for wearables,...