General view

TS-603

Electromagnetica

Manufacturer
Electromagnetica
Year
Unknown
Category
Telecommunications
Type
Telephone exchanges
Documentation score
1/5
Last edited
03 OCT 2026

Specifications

Switching
manual; secure links
Operating modes
four-wire long-distance links only

Sources: [1][2]

Description

The TS-603 is a manual field telephone exchange for secure links, designed by ICSITA, made by Electromagnetica in Bucharest [1]. It was the first field exchange for encrypted telephone links [1].

Derived from the F-1641, it switched only four-wire long-distance links, refused the operator’s attempts to listen in and signalled them optically and acoustically; a prototype version was installed at the Ministry of Defence [2].

Gallery

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Schematics

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Documents

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References

  1. [1]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, section V.1.4.1 „Întreprinderea Electromagnetica”, pp. 427–437
  2. [2]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, annex V.2.1 „Produse de tehnică pentru transmisiuni fabricate la Electromagnetica”, pp. 702–709