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 high-power amplifier with Japanese transistors from the 70s provides an output power of 150 W...
This configuration for logic circuits that perform operations with negative numbers was found in...
This didactic circuit was found in a 2001 documentation. It presents the result of programming in binary...