This circuit was found in a 90s Integrated Circuits Data Book. It interfaces a data line with a CMOS input, being powered by 5V. Can be used as a shield.
This setting appears other times in this section from other sources. This is from an 80's American...
This circuit, from a 1977 publication, allows to know if a bipolar transistor of general use is...
We show only one of the channels of an excellent audio preamplifier with the LM382 integrated...