This traditional TTL configuration was obtained in a 1977 documentation. The supply must be made with 5 V and the capacitors can be changed for operation at other frequencies.
Texas Instruments LMV3xxA operational amplifiers are low voltage types (2.5 to 5.5 V). In the...
This circuit was found in old documentation, but the transistor may be the modern equivalent BC547....
This circuit can be used in panel signaling with common incandescent lamp. The lamp will flash at a...