This analog instrument circuit was found in a 1990s William Sheets. The components are common and are only suitable for cars with mechanical switching (platinum).
This circuit was found in an article in the August 1971 Radio Electronics magazine. The source must...
Found in a Popular Electronics from 1992, this circuit was created to give effects to an...
Found in an Electronic Design from 1968 this circuit generates a linear sawtooth signal modulated...