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 traditional transistor source uses only two transistors found in a 1998 documentation. The...
This circuit is from the 1977 RCA Linear Integrated Circuits Manual. The circuit has a...
In the figure we show a means of changing the output voltage of a fixed regulator, such as 7805 or...