This circuit is from an Electronics Now from the 90s. The circuit uses a power integrated circuit from the time that must be equipped with a heatsink. The power supply is 18 V.
This simple timer is from a 1998 publication. Other operational amplifiers can be used, and the...
August 2017 - Rectron's Schottky Barrier Diodes can now be obtained from Mouser Electronics. The...
This circuit limits the intensity of an audio signal from a control voltage. The circuit is from a...