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 circuit in a 1967 English magazine, but it can be assembled with minor adaptations, such as...
September 2017 - IXYS Class X2 to 700 MOSFETs can now be purchased from Mouser Electronics....
This circuit is from an American documentation of the 1980s. The circuit can be implemented with more...