This TTL time base for 60 Hz or 50 Hz can be used in instrumentation circuits or even with microcontrollers, serving as a precision shield. The circuit is based on 7400 NAND ports and two transistors.
This circuit senses two-way currents serving to monitor battery charge and discharge. We find it...
This semi-proportional temperature control was found in old American documentation. The components are...
This precision circuit can be implemented with other operational ones. We found it in a...