This circuit was found in a 1966’s Delco Radio documentation. Transistors are from the era, high voltage application types.
We find this efficient emergency lighting system in a 1987 publication. The circuit keeps a...
March 2017 - Microchip's new 8-bit PIC16F15354 microcontrollers can now be obtained from Mouser...
Found in old documentation, this circuit applies to almost any common operational amplifier or...