Estonija 1956
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Since 1956, the Tallinn plant Punane-RET has produced the radio receiver and the radio tube lamps "Estonia" since 1956. From the beginning of 1956, the plant "Punane-RET" began to produce a first-class radio receiver "Estonia", another name "Estonia-55" by the year of its development. The case at the receiver was originally designed for the installation of the EDA for the subsequent release of radiols, or the installation of the EDA by the owner. Since the autumn of 1956, the radio line Estonia was produced (Estonia-55), and the release of receivers was gradually discontinued. '' Estonia '' is a 5-band, 12-tube superheterodyne receiver with a rotatable magnetic antenna for operation on the DV, ST bands, VHF dipole and a 2-speed EPU-III electro-repro device, (in the first releases of EPU-II). Lamps 6Н3П, 6К4П, 6А2П, 6Н2П, 6Ð¥2П, 6Ж3П, 6П1П, 6Е5С, 2 blocks of selenium rectifiers are used. There is AGC, limiting the amplitude of the IF in the VHF range, adjusting the IF bandwidth in the AM bands, and adjusting the timbres in the LF and HF. Radiol was produced in the desktop and a small series in the floor design. Ranges DV, SV standard, KB1 36.6 ... 75.9 m, KB2 24.8 ... 38.44 m and VHF 4.11 ... 4.55 m. Sensitivity in the ranges AM 50 µV, VHF 10 µV. Selectivity in AM - 46 dB. When receiving the audio frequency range 50 ... 5000 Hz, in the range of VHF 40 ... 13000 Hz, with the operation of the EPU - 60 ... 10000 Hz. 120/140 W power consumption from a network. Dimensions 600x435x360 mm. Weight 23 and 25 kg.
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Information from collection of Valery Khartchenko