This circuit from a June 1957 Radio Electgronics is for oscilloscopes of the time with a maximum frequency of a few megahertz. The circuit is battery powered.
This filter was found in a 1975 American technical publication. The filter can be of any type and...
This motor logic control was found in the September 1985 issue of Radio Electronics magazine. The...
This configuration can be found elsewhere on this website and section. The circuit is from Popular...