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This summary provides an overview of notable military analog field telephones from each decade of the 20th century, with one representative device per decade showcasing the technological evolution of the era. The selected devices come from various parts of the world and were chosen for their technical innovations or other significant features. The analog field telephone era, which began in the late 19th century, gradually declined by the late 20th century as digital technology and integrated networks replaced analog voice communications.

1900 - German Feldfernsprecher (1904)

Encased in a heavy-duty oak box, this integrated set features both a buzzer and magneto call, but relies on external batteries. While well-made, it is quite heavy for a 'portable' device, weighing nearly 11 kg including the external battery box.

1910 - US Signal Corps Service Buzzer Model 1914

This buzzer-only set is very compact and extremely lightweight at 1.5 kg, especially compared to other sets of the era.

1920 - German Reichswehr Feldfernsprecher (1926)

A full-featured set for LB and CB use, with an optional buzzer, it is the predecessor to the renowned FFsp 33.

1930 - French T.M. 1932

This compact set, housed in a sturdy metallic box, features an advanced foldable handset with a dual-use microphone suitable for both normal speech and as a laryngophone.

1940 - Italian Mod. 42

Based on the "German design", resembling the FFsp 33 with its form and Bakelite box, this set features an advanced modular setup with easily exchangeable modules.

1950 - Swiss Ftf 50

This set is based on the US EE-8 design but smaller and lighter.

1960 - Yugoslavian Poljski Telefon M-63

This set is based on the US TA-312/PT design but smaller and lighter.

1970 - Norwegian TP-6N (1973)

A modern approach: a compact, lightweight and completely electronic set.

1980 - Austrian Feldfernsprecher F-27-0 (1981)

This set is rather unusual. While the transmission circuit, RX and TX capsules, magneto, and dial use traditional electromechanical technology, the ring receiver (tone generator) employs a complex transistorised setup. It appears to be a 'design by committee' configuration.

1990 - British PTC 414 (1994)

A modern, fully electronic set that is both lightweight and sturdy. It supports LB and CB/aut. networks.

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