This circuit for a simple alarm system was suggested in an article in Electronics Now magazine. The circuit has a small power stage that can be changed.
This indicator, shown in the figure and suggested by National Semiconductor, causes an LED to...
This simple 4-bit digital-to-analog converter was found in a 1974 publication. The transistors can be the...
Yes, in 1958, before the invention of the integrated circuit, modules already existed, they were...