Nikon SB 20 User Manual
Page 83
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Power source
Power switch
Four 1.5V AA-type alkaline-
manganese or NiCd batteries:
optional Battery Pack SD-7
holding six C-type batteries is
available as an external
power source
Three positions are pro
vided—OFF, STBY (for
standby) and ON; at STBY
position with the Nikon F-501/
N2020, F-401/N4004, F-301/
N2000, FA, FE2 or FG, SB-20
turns off automatically when
flash unit is not used for one or
two minutes and turns on when
camera exposure meter is on
53
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