This circuit was obtained in Linear Technology documentation from 1993. The circuit provides 3.3 V and 5 V outputs with high current. The integrated circuit is from the time.
This experimental amplifier was found in the 1960 Mullard transistor reference manual. The...
This circuit from Motorola is from 1968, appearing elsewhere on this site. The transistors admit...
This circuit triggers the LED when the monitored battery voltage drops below 9 V for 12 V...