This simple logic probe circuit was found in the August 1980 issue of Radio Electronics magazine. The circuit works with both TTL and CMOS logic.
This circuit was found in an old publication from the 1970s. Despite using germanium transistors, it can...
The circuit in the figure trips with a negative transition of the input signal, its output...
This circuit generates rectangular signals at a frequency determined by R2, R3, C1 and C2. See the...