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 sophisticated comparator, which may have didactic or practical purposes, was found in a 1980s...
This circuit for the 11-meter band, operating at 29.255 MHz was found in a Radio Electronics dated...
We found this circuit in an old neon lamp application manual. The circuit stores a call. The...