Artifact Details Title Type 6700 Beam Switching Tube Catalog Number X1584.99D Type Physical object Description These decade counter tubes were used in a variety of digital counting systems, including early Remington-Rand UNIVAC computers. These tubes were the second generation of integral vacuum tube counting tubes, employing electromagnetic deflection. Manufacturer Burroughs Corporation Place Manufactured U.S. Identifying Numbers Model number 6700 Other number 17 Written in red paint on one of the magnets. Serial number 5169? Dimensions overall: 1 3/4 in x 1 3/4 in x 2 3/4 in Category Component/vacuum tube Credit Gift of Eric Barbour Lot Number X1584.99A-M