PORTABLE BATTERY ELEMENT TESTER,      SIEMENS & HALSKE / Germany     (1900)
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Scale  =   0 .. 0.5 .. 1 .. 1.5 .. 2 Volt                       SN = 934391

    There is a  BLACK ARROW  at 1.5 Volt  ( "Button not pressed" ),
         and a   RED ARROW   at 1.0 Volt  ( "Button pressed" )  saying,
    "  A R R O W S   s h o w i n g   t h e   L O W E R   L I M I T S  "

impressum:
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© C.HAMANN           http://public.BHT-Berlin.de/hamann            05/25/11