This basic TTL watch and minute clock circuit was found in European documentation from the 1970s. The power supply is not included and is given in CB19635E. The circuit uses common anode displays.
Lamps in the range between 20 and 50 mA can be used. Voltage supply is according the lamp and...
The purpose of this circuit found in an old documentation from the 90's is to switch on low...
This configuration, which appears elsewhere on this site, was found in documentation from the...