IN12 is the Soviet analog Western elliptical glow tube, such as Burroughs B5991 and 8422., in order to save costs, digital'5'is installed upside down by digital'2'. The digital height is 19Mm, and the diameter of the tube is 30Mm at its widest point. The tube is compatible with the 14 pin socket used by B5991, but the lower side connector requires that the socket has central location and perforation.
IN12 has two slightly different versions, IN12B, has a decimal point, and IN12A does not. IN-12 is widely used by enthusiasts in projects because of its high performance price ratio. The place is sold as IN12B.
View Kopfseitig/ end-view
Symbols 0-9
Symbol Height Mm 18
Length x Width Mm 21 x 32
Total Height mm 35
Pin Diameter mm 1.02
Typical Plate Voltage V Ca./approx. 145
Typical Cahthode Current MA 2.5... 3.5
