When the power is cut off, this circuit keeps the flashlight on for a while, allowing it to be located. The circuit is from a Radio Electronics from September 1992.
June 2017 - ECM032 series of SMD quartz from ECS crystals can now be obtained from Mouser...
This circuit can also operate with SW and even VHF signals up to 150 MHz. The circuit can be...
This is a traditional complementary configuration that provides good audio power with excellent...