This bargraph circuit using LM3914 was found in the October 1980 Radio Electronics magazine. Note the use of a transistor to modify the response.
Who is faster? or reaction game are other names for this circuit that we find in old...
The radio presented was found in a 1980 documentation. It consists of 3 stages: the tuning circuit...
This circuit from the 70s, was found in a publication from the 70s, we kept the original text....