Artifact Details Title PDP-5 Accumulator Board Catalog Number X21.81I Type Physical object Description The item is attached to 12 other pieces: A-L: PCBs M: Backplane PCBs: A, B, D, E, F, H, I, J, K, L: Triple Flip-Flop Model 4206F C, G: 22-Pin Plug Adaptor with Bus Drivers Model 4801B. This board is a Triple Flip-Flop Date 1964 ca. Manufacturer Digital Equipment Corporation (DEC) Place Manufactured U.S. Identifying Numbers Model number PDP-5 Other number 0159917 on side of board Other number 4206 F printed on top of board Dimensions 10 3/4 x 4 1/2 x 1/2 in. Category Component/module Credit Gift of David Razler Lot Number X21.81A-M