This circuit, suggested by an Electronics World of 1969, keeps a blinking LED for a while when a power outage occurs. Time depends on capacitor C1.
This very simple amplifier was found in the Philips Databook of 1990. The circuit is suitable for...
November 2016 - The new wireless power modules for use in wearables from Semtech can now be...
This two-stage amplifier hás a high impedance input and excelent voltage gain. It can be used as a...