This analog ammeter circuit was found in documentation from the 1980s. The components admit equivalents and the scales are determined by the values of the components in the range selection.
Found in a 1967 Delco documentation, this circuit can deliver power from 40 to 50 W at 8-ohm load....
This circuit allows you to use the parallel PC interface to control LEDs. The circuit was found in...
This traditional multivibrator configuration uses an LDR as a sensor. The circuit emits sound when...