This is an old post, preserved for reference.
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Continuing my look through the series of BBC Computers from Acorn, we have the big brother of last week's BBC Model A, the BBC Model B. The one in the picture below is not the one we are repairing today (I couldn't find the 'before' photo of that), but you can see it's got most of the chips and connectors that were missing in the model A, a full compliment of RAM and the normal arrangement of ROMs. This is essentially the same machine as the model A, but with more of the board populated.
BBC Micro Power supply repair, but I will just show a few photos from this one, as it must have put on quite a show when it went.
The Future Was 8 bit, and
BBC Model B+.