This game was found in Radio Electronics from the 90s. The components used are common except some that are from that time and that can no longer be found easily.
We found this circuit in a 1968 Electronics World. The transistors are from the era and...
There are several manufacturers of the integrated circuit used and it also admits equivalents. The circuit...
This circuit is from 1971 American documentation. Transistors are still common except for 2N2060...