Found in an Elektor from the 90s, this circuit simulates a rotary switch that provides a BCD output from a 1 pole x 10 common position switch. The circuit can be powered by voltages from 3 to 15 V.
This continuity test was found in a 90s Electronic Engineering. Transistors are types of general...
The shunt type regulators are connected in parallel with the load, deflecting the current to...
This circuit protects the speakers in case the amplifiers have problems. With a continuous voltage...