This object consists of an evacuated glass envelope surrounded by a magnet. Two concentric circles of pins project out of the bottom of the envelope. The inner circle consists of nine pins, and the outer circle has 17 pins. The top cap consists of a cylindrical black plastic pieced topped by a dome. The bottom cap consists of a white plastic cylinder that fits around the tube and partially covers the bottom. The device is a decade counter that can be configured for several applications, such as a staircase generator, frequency divider or counter. It is capable of running up to 2 MHz. From the Boston Tube Exhibit of 1998, and includes a brief description.
Manufacturer
Burroughs Corporation
Place Manufactured
U. S.
Identifying Numbers
Model number
6700
Printed in black ink on the red label surrounding the tube.
Serial number
51654
Printed in black ink on the red label surrounding the tube.