6AC7 Amplifier (T450E)

Obtained in MIT documentation, this 4-stage circuit has high gain for small signals. The power supply sources 150 V.

48V Hot Swap Controller (CB5236E)
Using Linear Technology's LTC4252-1, this circuit was found in a 2005 manual. The circuit makes use of...
Electronic Face (CB25735E)
This decorative circuit was found in the July 1994 issue of Electronics Now magazine. It makes LEDs...
Traffic Light 4017 (CB25706E)
This realistic circuit has longer timings for green and red lights, with shorter timings for...