When testing the response of many pulse-width-modulated (PWM) systems, there's a need to independently vary a multivibrator's frequency and duty cycle. Such systems include dc motors, ultrasonic ...

The Eccles-Jordan Flip-Flop Circuit. By P. A. Neeteson. (Series on Electronic Valves, Vol. 10.) Pp. vi + 82. (Eindhoven: N.V. Philips' Gloeilampenfabrieken; London ...

Monostable multivibrator circuit diagram and its working. It can be used as timers, delay circuits, gated circuits etc. Read this post for more details about its circuit, operation and uses.

My teacher friend was looking for Christmassy technology ideas for a science + engineering club. And I said that flashing leds might be good, and if you can get three phases going, you can have a ...