PDP-8/L announcement (1968).
PDP-8/L desktop reference card
Flipchip card layout PDP-8/L
Flipchip card layout BA08A
BA08A Module utilization chart
Flexprint connector layout
Wiring PDP-8/L to BA08A expansion box
BA08 Peripheral Expander Option Functional Description (DEC-8L-HBAA-D)