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.
This watt meter was found in an old telecommunications documentation. The circuit is interspersed...
We found this circuit in the April 1992 issue of Radio Electronics magazine. The circuit uses an...
This circuit is from old documentation. The operational amplifier is uncommon nowadays. The...