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.
This 1992 circuit has a diode normally replacing the diac that is used in this type of...
This oscillator was found in the January 1996 issue of Electronics Now magazine. The frequency is given by...
This circuit divides the voltage of a source by 2, allowing its use as a symmetrical source. In...