General view of KC with extender

Keyboard

With module bays empty

Single KC

Front

Front from left side

A module

Rear: Power cable, antenna cable,
RGB/composite and expansion connector

Quite low serial number in one of KCs

Expansion interface

Loading diagnostic software from tape

Running diagnostic software

2 computers and bus extender.

Bus extender

Strange power button

Modules

Here serial number is even smaller

2 interfaces - maybe they're designed to be stacked?

Inside a computer

Newer unit with SN >23K has better PCB

Under the mainboard

Ready for servicing

Power supply

Mainboard

Upper board

Keyboard inside: Connection and logic

Keyboard inside: chip

Bus extender inside

Under bus extender's mainboard.

They designed it to be expandable.

PCBs opened

Digital I/O module inside

ADU module inside

ADU detail

Memory in 64K RAM expansion module

64K RAM module inside