The voltages in an adjusted range in the trimpots are indicated by 3 LEDs. The LEDs indicate when the voltage is below the range, above the range and in the range.
Found in a 90’s Electronics Now, this circuit has its output connected to an audio amplifier. The...
This configuration that appears elsewhere on this website and in this section was suggested by...
This circuit was designed to power the previous circuits of the wireless sound system, but it can...