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 50 W amplifier was found in the November 1983 Radio Electronics issue. The circuit is...
This sophisticated circuit was found in the November 1978 issue of Radio Electronics magazine. Based on...
This circuit is from Radio Electronics from March 1985. The circuit uses common components at the...