This circuit for incandescent lamps was found in a 70s documentation. The circuit uses an SCR according to the power of the controlled lamps. The delay is a few seconds, given by capacitor C1.
This amplifier is from a 1990s Linear Technology component manual. The circuit requires...
January 6, 2016 - Mouser Electronics, Inc. is now stocking the TPS25810 USB Type-C™...
This simple MW radio circuit with two transistors was obtained in an Argentine publication from...