Found in a General Electric documentation from 1970, this circuit is intended to supply a power LED of the time or Solid State Lamp. No information was given about the core used in the transformer.
This version of mixed is one of the many that appears on the website using the 741. The circuit was...
This circuit was found in a 1987 magazine. It measures the resistance of the skin using a...
This two competitor version of the game is shown below and uses lamps as indicators. You can...