L.1557

Technical Characteristics

• Bulb Designator

  t-1 3/4

• Overall Length

  0.630 inches nominal

• Burning Position

  any acceptable

• Filament Designation

  c-2f

• Current Rating For Which Designed

  0.012 amperes minimum and 0.015 amperes maximum

• Voltage Rating

  10.000 volts nominal

• End Item Identification

  nimitz class cvn; forrestal class cv; defense communications radio (9 systems); virginia class cgn(41); teletype, model 28; landing system automatic carrier, dual channel; spruance class dd(963); deep submergence systems programs (dssp); los angeles class

• Base Style

  single contact miniature flanged

• Filament Heavy Duty Service Rating

  not rated

• Wattage Rating

  0.120 watts and 0.150 watts

• Light Output Rating

  0.004 spherical candlepower nominal single rating

• Rated Average Life

  hours

• Emitted Light Characteristic

  colorless

• Light Center Length

  0.380 inches nominal

• Average Life Rating In Hours

  50000.0

• Bulb Light Transmission Characteristic

  transparent

• Bulb Style

  t (tubular)

• ~1

  ssn (688); ticonderoga class cg (47); aircra