VEF M-1357 1945
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The VEF M-1357 tube network radio receiver has been manufactured by the VEF Riga Plant since 1945. The experimental workshop of the VEF plant immediately after the end of the war produced a small experimental batch of VEF M-1357 receivers. The design of the receiver was developed by the plant before the war. In the first embodiment, the receiver had in addition to a smooth and button tuning to radio stations pre-selected by the listener. After the war ended, the receiver was launched into small-scale production without button tuning, but automatic tuning of the frequency, button switching of thin correction and expander were saved. The VEF M-1357 radio receiver was created on the basis of the VEF Luxus M1307 radio receiver developed at the beginning of 1940. In the design documentation, the receiver was originally called `` VEF Luxus M1357 ''. In the development of both models, the radio designer Alberts Madisons has been working at the plant since its inception. The radio receiver contains 14 lamps (2 kenotrons are connected in parallel), it has an AFC and an expander expanding the dynamic range of reception. The lamps are installed in the model: 6K8, 6K7 (3), 6Zh7, 6Kh6 (2), 6R7, 6N7, 6P6 (2), 6E5, 5Ts4S (2). The ranges of frequencies and waves received by the radio receiver: LW - 150 ... 430 kHz, CB - 520 ... 1500 kHz. KB1 4.1 ... 10.5 MHz (28.6 ... 73.2 m). KB2 - 9.2 ... 23 MHz (13 ... 32.6 m). KB3 - 15.03 ... 15.4 MHz (19.48 ... 19.96 m) IF 465 kHz. The rated output power of the amplifier of the radio receiver is 12 W, the maximum is 15 W, the power consumption from the network is 200 W. In the first photo, the base receiver is `` VEF M-1357 '', the chassis photos are also his. The receivers are almost identical in chassis except for push-button tuning.
Documentation:
Information from collection of Valery Khartchenko