This circuit was found in a 1966’s American publication. What it does is to receive a pulse and keep it for intervals of up to 1 minute at the output.
This circuit from the 40's is a conventional analog multimeter with several scales. Its accuracy will...
The integrated circuit used in this project is no longer very common, but if found it can result in...
This switched regulator configuration was found in Motorola's 1969 documentation. The integrated...