In the figure we have 3 oscillators with logic gates that can be triggered by external logic signals. The circuits were found in the Radio Electronics magazine of April 1987.
This circuit is designed to force a current greater than that of the fuse onto the transistor in...
Carbon microphones are no longer used in most projects. However, finding one in the scrap metal, it...
We found this circuit in a publication by General Electric in the 1980s. The transistors and the...