TA-57

The first model of the TA-57 rolled out in 1957 for usage by the Soviet Armed Forces.{{Cite web |title=fieldphones.org - Army Fieldphone Comparison |url=https://fieldphones.org/002-armyphones/ |access-date=2024-03-26 |website=fieldphones.org}}

As of 2022, the TA-57 was reported to be in use by Russian forces in the Russo-Ukrainian War.

It has been documented in human rights reports as a torture device during the conflict, with euphemisms utilizing the TA-57 as a "phone call to Putin" or "call to Lenin".{{Cite web |date=15 March 2023 |title=Report of the Independent International Commission of Inquiry on Ukraine |url=https://www.ohchr.org/sites/default/files/documents/hrbodies/hrcouncil/coiukraine/A_HRC_52_62_AUV_EN.pdf |access-date=25 March 2024 |website=UN Office of the High Commissioner}}{{Cite web |last=Times |first=Русская служба The Moscow |date=2023-03-16 |title="Звонок Путину". ООН раскрыла методы пыток российской армии в Украине |url=https://www.moscowtimes.ru/2023/03/16/zvonok-putinu-oon-raskrila-metodi-pitok-rossiiskoi-armii-v-ukraine-a37047 |access-date=2024-03-25 |website=Русская служба The Moscow Times |language=ru}} It was also used to torture a suspect of the Crocus City Hall attack.{{cite web |last=Krasteva |first=Gergana |date=25 March 2024 |title=Russian terror suspect 'electrocuted by his genitals' during interrogation |url=https://metro.co.uk/2024/03/25/russian-terror-suspect-electrocuted-genitals-interrogation-20522324/ |access-date=25 March 2024 |website=Metro |archive-date=27 March 2024 |archive-url=https://web.archive.org/web/20240327170410/https://metro.co.uk/2024/03/25/russian-terror-suspect-electrocuted-genitals-interrogation-20522324/ |url-status=live }}{{cite web |last1=Stewart |first1=Will |last2=McPolin |first2=Sean |date=25 March 2024 |title=Battered 'terrorists' show torture wounds in court after genitals electrocuted |url=https://www.mirror.co.uk/news/us-news/battered-moscow-terrorists-show-torture-32431832 |access-date=25 March 2024 |website=The Mirror |archive-date=25 March 2024 |archive-url=https://web.archive.org/web/20240325201613/https://www.mirror.co.uk/news/us-news/battered-moscow-terrorists-show-torture-32431832 |url-status=live }}

The TA-57 can be used for induction calls working with 2-wire lines in an OB (local battery) or a ZB (central battery) operation. It can be used to transmit voice messaging in ranges between 0.3 and 3.4 kHz, with a calling frequency of 15 to 45 Hz. Absolute signal level at output of transmission path with a 600Ω load ranges between -3 and +3 dBu. It also a has a deployment time of 2 minutes.{{Cite web |title=Raketen- und Waffentechnischer Dienst (RWD) - Feldfernsprecher TA 57 |url=https://www.rwd-mb3.de/ntechnik/pages/ta57.htm |access-date=2024-03-25 |website=www.rwd-mb3.de}}{{Cite book |title=Handwörterbuch des elektrischen Fernmeldewesens |publisher=Bundesministerium für Post und Telekommunikation |year=1970 |edition=2nd |location=Berlin |publication-date=1970 |pages=1209–1210, 1941–1942 |language= |trans-title=Concise Dictionary of Electrical Telecommunications}}{{Cite web |title=RusArmy.com - Телефонный аппарат ТА-57 |url=https://rusarmy.com/svyaz/ta/ta_ta-57.html |access-date=2024-03-25 |website=rusarmy.com}}

Power is primarily drawn from a 10V lead–acid battery GB-U-1.3 (ГБ-10-У-1.3) with a capacity of 1.3 Ah, alternatively a 9V block battery can be utilized. In OB battery operation, a hand cranked magneto can be used to generate ringing.

The enclosing and body is made of Bakelite and its dimensions measure 22.2 x 16.5 x 7.9 cm, and weighs 2.8 kg.

There are multiple cables that are used, which can establish the range of the phone:

• Field cable P-275 (П-275); 20 km range
• Field cable P-274 (П-274); 40 km range
• Field cable P-268 (П-268); 40–45 km range
• Field cable P-271 (П-271); 125 km range
• Overhead line; up to 170 km range.

With a reception amplifier, the signal range of the phone can increase by 30-50%.

It is intended for operation ranging from -40 °C to 50 °C, and a max humidity of 98% at 25 °C.{{Cite web |title=Telephone Device TA-57U |url=http://radiopribor.com.ua/forming.php?id=32&lang=ru |archive-url=https://web.archive.org/web/20120713060845/http://radiopribor.com.ua/forming.php?id=32&lang=ru |archive-date=13 July 2012 |access-date=25 March 2024 |website=Radiopribor}}

A modernized variant of it is known as a TA-57U.

• {{Flagicon|Ukraine}} Ukraine
• {{Flagicon|Russia}} Russia{{Cite web |last=Krasteva |first=Gergana |date=2024-03-25 |title=Russian terror suspect 'electrocuted by his genitals' during interrogation |url=https://metro.co.uk/2024/03/25/russian-terror-suspect-electrocuted-genitals-interrogation-20522324/ |access-date=2024-03-25 |website=Metro |language=en}}

• {{Flagicon|Soviet Union}} Soviet Union{{Cite web |title=Military Telephone TA-57 Military Unknown - CUSTOM BUILT: Soviet {{!}}Radiomuseum.org |url=https://www.radiomuseum.org/r/unknown_military_telephone_ta_57.html |access-date=2024-03-26 |website=www.radiomuseum.org}}
• {{Flagicon|Iraq|1991}} Iraq - one specimen in the Imperial War Museum was acquired during Operation Granby.{{Cite web |title=TA-57 field telephone |url=https://www.iwm.org.uk/collections/item/object/30101365 |access-date=2024-03-26 |website=Imperial War Museums |language=en}}

{{reflist}}

• {{commons category-inline|TA-57}}

Category:Field telephones

Category:Military equipment of the Soviet Union

Category:Military equipment of Ukraine

Category:Military equipment of Russia

Category:Military equipment of Iraq

Category:1957 in the Soviet Union

Category:Telecommunications-related introductions in 1957

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