This circuit with different colored indicator LEDs has an expanded scale. We found it in the March 1992 Radio Electronics magazine. For an adjustable range of 0 to 10.5 V.
The circuit presented is from the 1993 Linear Technology Applications. The components used were...
This 12 V motor speed control was obtained from a Linear Technology application manual. The...
This circuit uses a complementary unijunction transistor that is not the common type. The...