This circuit was obtained in a 1982 English magazine. The purpose of this circuit is to interface signals other than TTL circuits with TTL inputs. The transistor can be a BC548, 2N2222 or any equivalent.
We found this 4-transistor receiver for the AM MW range in a 1960 transistor manual from Sylvania....
The sensor component used in this project is not common today as it is an 80's design. The circuit...
This circuit produces a pulse train controlled by the output of a logic circuit or a...