In the figure we have the way to implement a logic gate or (OR) with an LM393. The circuit must be powered by a symmetrical source and other operational ones can be used.
We found this circuit in a 1999 publication. All the components used are still common and the...
This circuit was found in a 1999 English magazine, but can be easily assembled with BC548...
We found this circuit in a 1977 technical documentation. The circuit can use a TIP31 for Q1 and a...