== Article ==
<gallerycaption="Part 1 - RTC DIY Hardware (ACU April 1985)">
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Observe that the part number, MM58147, in the headline is wrong (it's meant to be MM58174).
[[Category<gallery caption="Part 2 - Software for the RTC (ACU May 1985)">image:Hardware]] ACU8505-008.jpgimage:ACU8505-014.jpgimage:ACU8505-016.jpg</gallery> [[Category:Peripherals]] [[Category:DIY]]