Britannia ROM Board

The ROM Plus is a ROM Board from Britannia Software Ltd.

It also features a cartridge slot (which never became a standard).

Pics

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  Britannia ROM Plus
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  Review 1/2 (ACU, 4/1986)
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  Review 2/2 (ACU, 4/1986)
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  Advert (ACU Nov 1985)
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  The Rom Plus, open
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  The Rom Plus, plugged in
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  Boot message
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  Another shot
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  Top board side
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  Connector
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  ROMPlus Top
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  ROMPlus Bottom
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  ROMPlus PCB Top
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  ROMPlus PCB Bottom
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  SUPER ROMPLUS Auto ROM Control System screenshot
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  SUPER ROMPLUS Auto ROM Control System screenshot
• 
  SUPER ROMPLUS Auto ROM Control System screenshot

Downloads

ROM revisions, posted by Johnny Olsen:

File:ARCSV106.zip

File:ARCSV107.zip

Note: the actual versions are 1.6 and 1.7, not 1.06 and 1.07.