We found this circuit in GE's 1977 transistors manual. Transistors admit equivalents according to the desired current at the output.
To obtain an AND gate we have the configuration shown in the figure. With the values indicated for the...
This circuit has been removed from the component's datasheet. In it we have a monostable or...
Here we have the way to activate two common cathode displays with 4026 integrated circuits. The...