This stage of IF to 455 kHz operates with voltages from 1.5 V. We find it in a 90s Popular Electronics. The integrated circuit is uncommon today.
This circuit allows you to couple a TTL circuit output to the input of a CMOS circuit. The base is a...
This circuit is from a 1968 Electronic Design. The components are from the era and the operating...
This two competitor version of the game is shown below and uses lamps as indicators. You can...