We found this circuit in a 2002 documentation. This die shows numbers 1 to 6 on a common anode display when the switches S1 and S2 are pressed. The circuit can be powered by voltages from 5 to 12 V.
This circuit was found in a 1977 Radio Shack documentation. The unijunction transistor can be...
This circuit was found in a 1968 Hughes documentation. The transistors are from that time. The coil...
This circuit uses NO sensors and was found in an American publication in the 90s. The supply must...