Posted on Jun 25, 2014
SFC Joe S. Davis Jr., MSM, DSL
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Phone
The TA -312 Field Phone (LEGENDARY) WE CALLED THE BATTERIES BA 30S

The analog, 2-wire, battery operated TA-312/PT replaced and will interoperate with the World War II and Korean War EE-8 field phone. The rugged and reliable TA-312 was used from the 1950s through the 1980s before being superceded by the TA-838 analog field phone. TA-312's continue in use throughout the U.S. forces as well as many allied countries.

The TA-312/PT is a two-wire, battery operated field telephone. It has a
range of 38 km using WD-1 wire, and was a successor to the EE-8 field
phone used during World War II and Korea. Primarily used from 1950-
1990, it was replaced by the TA-838. It's typically stored in a canvas
bag. An optional TA-955 dual tone multifrequency (DTMF) adapter
allows push button operational interface with automatic analog switches.
To install the TA-312 telephone:
* Strip away one-half inch of insulation from each strand of the WD-1
wire line.
* Depress the spring-loaded line binding posts and insert one strand of
the wire into each post. It doesn't matter which one goes where.
* Adjust buzzer volume control knob to LOUD.
* Turn the INT-EXT switch to INT (Internal). The TA-312 has the
capability of either using the standard H-60/PT handset (INT) or an
external H-144/U headset (EXT).
* Turn the circuit selector switch to LB. (Local battery).
The TA-312
http://www.personal.psu.edu/wmc12/telephones/TA-312.html[6/25/2014 10:03:37 PM]
* Insert the two BA-30 batteries into the battery compartment (one up
and one down). Two D-Call batteries work just as well.
* Seat the handset firmly in the retaining cradle.
* Turn the handcrank rapidly a few turns. Remove the handset from the
retaining cradle and wait for the other operator to answer.
* Depress the push-to-talk switch to talk. Release the push-to-talk
switch to listen.
The Technical Manual used for the TA-312 is TM 11-5805-201-12.
Posted in these groups: Train2 TrainingCommunications
Edited >1 y ago
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Responses: 112
CPT Cynthia Koroll
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Originally a 31N before going on to medic and nurse. This field phone rarely worked, was so heavy and occasionally shocked me!
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SGT James Hastings
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The EE-8 was what I was trained on in 1951. Laying a land wire line that was easily taped into or cut wasn't the smartest move in combat, I felt.
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MSG Chaplain Assistant
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DIVARTY barracks had one going from the CQ desk up to the female floor. That was a couple years ago. Also a staple on our section MTOE.
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PFC William Jacobs
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36 h/g, what about a tech 7 van, or an a/e or xy switch
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SFC Joe S. Davis Jr., MSM, DSL
SFC Joe S. Davis Jr., MSM, DSL
10 y
That's going back "ole school" there!
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SSG Mike Angelo
SSG Mike Angelo
10 y
Vietnam era 2 1/2ton truck shop mobile w/3kW to 5kW generator and later AN/146A vans. A 50 ft. semi trailer with roadside/curbside shop tables w/30kW generator.
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MSG John Wirts
MSG John Wirts
>1 y
There were three field maintenance vehicles a modified m-38 jeep with a pto arc welder, a 3/4 second echelon shop van with acetylene and pto arc welder and complete shop tool set, and the 2 1/2 ton mobile machine shop.
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SFC Joe S. Davis Jr., MSM, DSL
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SPC Ray Blaylock
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We used these phones in Germany while in the field
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CW4 Craig Urban
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My bother was a wireman. Third AD. I was a sp/5 in Wiesbaden. In charge of all the supplies. Heaters were a hot one. Since he had to go to Graf. I gave him two. His co did not have one he the Captain to go take a good crap
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SPC Nancy Greene
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SFC Joe S. Davis Jr.,
You certainly know your equipment!!! I actually saw one or two in Basic Training in 1983! Think part of our EOC test was communicating utilizing this device and the appropriate com communication! Great Share! Impressed with your knowledge!
Nancy
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SGT Ray Ruddles
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I would run a mile of cammo wire to hear her fart. Long-time ago
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SFC Don Johnson
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I used the ta-312-pt to communicate from the radar set to the control tower in 1966. Now I use
the field phones with my 2 great grand sons
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SGT M Edwards
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It was still 31L when I was in. I wish I had more old pics of running cable, installing and repairing phone lines, gaffing equipment and climbing poles, cleaning the cable and the reels etc. It wasn't easy work but I enjoyed being able to get outside and get dirty. I only wish there had been better job opps when I got out. Thanks for this pic, Miss those days.
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