That jerk was such a quack. His mantra was quantity, not quality. Only about a tenth of his crap was unique, and that was not even his!This was a Forrest Mims article in Popular Electronics August 1979.
It used the LM3914, one 4017 and one 4011.
The resolution left much to be desired.
You could try a google search on his name and oscilloscope.
Or try and find a copy of his Engineer's Notebook.
Today it would seem foolish. In 1979 it would have been magic to the hobbyist (or at least quite useful).That jerk was such a quack. His mantra was quantity, not quality. Only about a tenth of his crap was unique, and that was not even his!
Back in the day three quarters of the Radio Shack books were his crap. 30-100 "projects" each all based on the same two or three circuits.
You are better off with one of the free PC scope programs that use the sound card's mic input.
Guess I was just past them before they were out. Even in middle school I was referring to data sheets and appnotesI found the Forrest Mims books very useful and educational. They had plenty of circuit ideas and useful circuits. I still refer to them from time to time to kick start a project. Sorry you didn't enjoy them for what they were.