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The model 302 telephone is a desk set telephone that was manufactured in the United States by Western Electric from 1937 until 1955, and by Northern Electric in Canada until the late 1950s, until well after the introduction of the 500-type telephone in 1949. The sets were routinely refurbished into the 1960s.
Western Electric 202 hand telephone set as refurbished in the late 1930s and 1940s with new handset style. The low-profile 684A subset (1931) is mounted on wall in background. When designating anti-sidetone apparatus, the Bell System practice was to add the value 100 to the apparatus code of the corresponding sidetone equipment. [34]
Mechanically, the car utilised the hydraulic brake control, gear box, clutch and front suspension system first seen on the BMW 326, along with the live axle used on the BMW 320 and BMW 328. The BMW M78 straight-6 engine was used. [2] The advertised top speed was 125 km/h (78 mph). [2] A higher-powered model, the 327/28, was offered with the ...
The car was Hanomag's first mid-size model and one of the first mass-produced cars available with a diesel engine. Hanomag introduced the Rekord as the 6/32 PS intermediate model in autumn of 1933; the first car to bear the Rekord name followed shortly thereafter in February 1934. Compared with the 6/32 PS, the Rekords have a longer wheelbase ...
Ford Model A Racer 1928. During the 1930s, the Ford Model A (and Model B) engines were popular for racing, [1] [39] [40] in part because their lightweight internal moving parts had little inertia to overcome in acceleration – both from the starting line, and from acceleration out of curves. However, that same light construction resulted in ...
The Maschinengewehr 30, or MG 30 was a German-designed machine gun that saw some service with various armed forces in the 1930s. [1] It was also modified to become the standard German aircraft gun as the MG 15 and MG 17.
In accordance with the terms set, Rheinmetall delivered two samples of a 20mm-caliber anti-aircraft guns to the USSR, alongside full design documents for the model. This model was accepted into service in the Red Army as the 20 mm automatic anti-aircraft and anti-tank gun model 1930. The Kalinin factory attempted to adopt mass production for ...
Low-frequency radio range audio signals: N stream, A stream and combined uniform tone (simulated sounds) The low-frequency radio range, also known as the four-course radio range, LF/MF four-course radio range, A-N radio range, Adcock radio range, or commonly "the range", was the main navigation system used by aircraft for instrument flying in the 1930s and 1940s, until the advent of the VHF ...