Found in an old English publication, this circuit applies to the 240 V network, but can be changed to lower voltages. Transistors are mostly general-purpose, admitting modern equivalents.
The Exclusive-NOR function can be achieved simply by adding one more NAND gate as an inverter to...
The circuit shown serves as a direction indicator or arrow for bicycles, robots and other...
This traditional configuration of bandpass or bandpass filter with operational 741 was found in a...