This module consists of 7 PCBs comprised of resistors, capacitors and diodes. The vacuum tube holder labels each vacuum tube position as V2, V3, V4, V5, and V6. There are 5 vacuum tubes of various types plugged in and one position is capped. There are lucite panels on the bottom and left side of the PCB frame.
Date
1958 ca.
Manufacturer
IBM
Identifying Numbers
Other number
000425
Printed in black on top cross member of metal frame near tube base
Other number
090115
Stamped on inside of metal handle on inside left side
Other number
090116
Stamped on inside of metal handle on inside right side
Other number
3087042
Printed in black on top cross member of metal frame near tube base
Other number
3090122
Stamped on inside of metal handle on inside right side
Other number
3090123
Stamped on inside of metal handle on inside left side
Other number
6071
Handwritten on white paper label on inside left of handle
Other number
6072
Handwritten on white paper label on inside left of handle
Other number
6073
Handwritten on white paper label on inside left of handle
