This 100 second timer was found in the September 1992 issue of Radio Electronics magazine. The circuit has two timing ranges and time adjustment at R6.
This circuit was found in a Radio Electronics magazine from October 1987. It can be used as a...
This setting appears elsewhere on this site. This was obtained from an 80's Circuit Encyclopedia and...
This circuit was found in an Electronic Design from the 90s. The circuit uses a type J...