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.
This circuit hás a Power output of more than 1 W. It is used in small experimental or low power...
This circuit was found in a former Popular Electronics. The timing is given by R1 and C1, R4 and...
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...