C78-393

Technical Characteristics

• Bulb Designator

  t-2

• Bulb Style

  b25 t

• Features Provided

  filament shielding and heat resistant glass

• Wattage Rating

  not rated

• Voltage Rating

  35.000 volts nominal

• Filament Designation

  c-7a

• Overall Length

  1.688 inches maximum

• Filament Heavy Duty Service Rating

  not rated

• Average Life Rating In Hours

  5000.0

• Light Output Rating

  not rated

• Burning Position

  any acceptable

• Rated Average Life

  hours

• Current Rating For Which Designed

  0.035 amperes minimum and 0.050 amperes maximum

• Bulb Light Transmission Characteristic

  transparent

• Base Style

  a59 telephone slide number one

• Emitted Light Characteristic

  white