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Acorn BBC B
http://www.pelikonepeijoonit.net/cgi-bin/page.cgi?pkpcode=bbcb
Photograph and specification.
HCHOF Overview: BBC Model B
http://www.gondolin.org.uk/hchof/machines/bbc-model-b.html
Overview, technical details, and photograph.
The Machine Room: BBC Model B (Acorn)
http://www.machine-room.org/computer.php?id=18&view=general
Photographs, trivia, original price information, and technical details.
The PCB-Gallery
http://8bit-museum.de/pcb/index.php?group=5&id=151
Photograph of the PCB, along with technical specification.