Browse Items (26 total)

System Building Block in enclosure
Inverter 3101 marked on front; number stamped '21236' front top.

'Digital Equipment Corporation Maynard Massachusetts' marked on back.

System Building Block in enclosure
Flip-Flop 3201 marked on front; number stamped '13006' front top.
circuit board marked FF 3201-E 00644
'Digital Equipment Corporation Maynard Massachusetts' marked on back.

System Building Block in enclosure
Flip-Flop 3201 marked on front
circuit board marked FF 3201-J Pat. Pend.
'Digital Equipment Corporation Maynard Massachusetts' marked on back.

large aluminum (painted) rectangular mounting box for System Building Blocks. Painted speckled tan/brown. 'DEC Building Blocks' marked on back along with 'Digital Equipment Corporation' and 'Maynard Massachusetts' (no other nomenclature).

A sign used when displaying System Building Blocks for exposition.

model number 4509 stamped on front
level standardizer 1502A written on circuit board end
serial number 0137536 stamped on side