A Digital Read out for Transistor Decade Counter
R. Parshad, Subhash Suri, Thokchom Jayenta Singh · IETE Journal of Research · 1966
The paper describes a transistor digital display system using ordinary filament lamps. The lamp driving unit affords sufficient flexibility in the selection of the transistors used in it and the current rating of the filament lamps. The particular form of the AND matrix used prevents loading of the binaries of the counter.