The circuit shown in the figure below is from the 1993 Linear Technology Applications. The operational ones used are uncommon and the use of equivalents can be analyzed.
This circuit uses only two general purpose transistors and can be powered by the circuit under...
June 2017 - Mouser Electronics already has to ship the new MC Crystal Real Time Crystal Modules...
We find this efficient emergency lighting system in a 1987 publication. The circuit keeps a...