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 is intended to increase the width of a pulse. The circuit is TTL and can be used as a...
We found this circuit in an American 1980s documentation. The transistors can be equivalent as BC548...
This circuit was found in Sprague Electric documentation from the 90s. The circuit uses a...