This is another sampling and holding circuit found in a factory manual from the 1980s. The circuit can be implemented with more modern components. The FET is not a common component today.
In this circuit, from a 1977 publication, we have the traditional version of a filter that rejects 1...
The integrated circuit used in this application is uncommon today. However, the basic...
This physical line servo control uses components that are not currently common. The circuit is from...