Found in an 70s Electronic Engineering, this circuit divides the pulse frequency by non-integer numbers given by the positions of the switches.
This circuit has a type of bias called "virtual earth" providing good gain, given by R2. The...
This circuit was found in a 90s Electronic Design. The circuit directly controls a triac that is...
This circuit indicates when a 28 V lamp burns, lighting a neon lamp with higher voltage. The...