This circuit was found in the February 1980 issue of Radio Electronics magazine. The digital circuit was shown in two parts, using 20 LEDs in a configuration with the LM3914.
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...