Retrofit kit for TA-312 field telephone

The TA-312 Magneto Field Telephone, has been serving worldwide for many decades as a front line telephone connection between two or more units, directly or through telephone exchange. Due to worldwide demand to upgrade the capabilities of these old-post TA-312 telephones, Peryphon projected, designed, and manufactured a suitable improvement RETROFIT Kit, which replaces the telephone’s mechanical parts into electronic ones, leaving the same characteristics, and adding new features. This ready to install RETROFIT KIT has already been performed in tens of thousands of Army TA-312 phones. The retrofit process is comprised of the following:

  • Replacing the manual generator by an electronic capsulated one, having the same dimensions
  • Adding a warning LED for “Low Battery”
  • LED indicator holding ring for 20 seconds,and outgoing warning ring released by PTT push
  • Push button, replacing the rotating handle system
  • Adding an electronic internal ringer generator
  • Piezo ringer to replace the existing buzzer
  • Repeated ring, (Ring Back Tone), warning presence of another telephone set at the other end of the line. Ring stops if PTT push button is depressed or after switching off the ring LED
  • MIL-STD Compliant Operation temp. -30 to +71 C.

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