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 circuit was found in an American telecommunications documentation from the 1980s. The circuit...
This circuit is from a 1970 publication. The time constant is given by 1.3R x C where R is the...
This 18 V x 300 mA power supply was found in a 1969 documentation. The integrated circuit is...