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 was found in 1980s documentation. The circuit uses components from that time serving for...
This dimmer was found in a 1980 publication. The Triac can be any of the TIC series and the...
The National Semiconductor operational amplifier, now owned by the Texas Instruments group, is no...