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			Vic: Brit D Mk V Fd Tels were powered by 2 x 1.5 "X" cells= 3 Volts. The switchboard to which they were commonly hooked up, were powered by 3 x "X" cells= 4.5 Volts, the extra voltage encompassed the night alarm circuit, panel lights, and ringer apparatus. HTH Regards 
				__________________ PRONTO SENDS | 
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