This game with digital logic circuits was found in the December 1976 issue of Radio Electronics magazine. The circuit includes the power supply driving a set of LEDs.
This simple electronic music box circuit was found in the April 1985 issue of Radio Electronics. The...
This circuit was found in an Electronics Now of the 80s applying to NiCad batteries of the time....
The power source shown for powering for small TTL circuits was found on a Radio Electronics...