Revision history of "File:Mains absent alarm.png"

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  • (cur | prev) 21:33, 10 May 2011Quatermass (talk | contribs). . (310 bytes) (+310). . (Mains absent alarm. Designed to switch on a separate 9V small battery powered alarm or light if the Mains fails or the euipment fuse pops. {{Rights reserved |title= |url=http://stuarthalliday.com/ |from=Stuart Halliday |details=}})