We found in this American documentation this circuit for activating common cathode displays. In it we have the way to cascade the 4033 to drive two displays (dozens and units).
This multiple power source, with two transformers was found in American documentation from the...
We found this transmitter circuit with a single chip in the Motorola Linear Databook of 1990. The...
This oscillator can use inverters or connected AND or NAND gates as such. The signal produced with...