Found on Popular Electronics from 1970, this circuit fires a xenon lamp producing a C1-dependent flash. The circuit is suitable for 110 V mains.
This circuit triggers the LED when the monitored battery voltage drops below 9 V for 12 V...
Suggested by National Semiconductor, this circuit can be applied to almost any operational...
This circuit was found in Radio Electronics from the 90s. The circuit can generate signals up to...