Radiols "Lux" and "Lux-2" from 1956 and since 1958 were produced by the Riga factory "VEF".
'' Lux '' (RK-156) is an 11-tube AM-FM superheterodyne receiver combined with a universal electronic control unit.
There are six bands in the radio, built-in rotary magnetic antenna and VHF dipole, key range switch, fine tuning indicator, automatic gain control, separate smooth tone control, smooth IF bandwidth adjustment.
The radio speaker AC consists of two 5GD-14 broadband loudspeakers located on the front panel and two 1GD-9 high-frequency loudspeakers located on the side walls.
The universal electronic control unit with an asynchronous electric motor and 33 and 78 rpm drive, with semi-automatic switching on and automatic switching off has a piezoceramic pickup for two corundum needles for ordinary and long-playing records with a service life of 200 hours.
The radiola casing is finished with valuable wood and polished.
The scale has a graduation in meters.
The radiol has sockets for connecting an external antenna, grounding, an external VHF antenna, an external speaker and an adapter.
Chassis units and parts are unified, small-sized, subsequently they were adopted for the production of various radiol and receivers near a number of radio plants.
Dimensions of the radio 625x450x365 mm.
Weight 27 kg.
Food from an alternating current main in 110, 127 or 220 Century. Power consumption is 85 and 100 W.
Frequency ranges: LW 150 ... 410 kHz, CB 520 ... 1600 kHz, KVI 9.4 ... 13.0 MHz, KVII 5.2 ... 7.5 MHz, KVIII 3.95 ...
5.5 MHz, VHF 64.5 ... 73 MHz.
IF in the AM path 465 kHz, in the FM path 8.4 MHz.
Sensitivity at LW, NE, HF - 50 μV, VHF 10 μV.
Adjacent Channel Selectivity 56 and 30 dB.
Rated output power 6, maximum 11 watts.
The band of reproduced sound frequencies in the AM ranges is 60 ... 6500 Hz, the FM is 60 ... 12000 Hz, and when the EPU is operating, it is 70 ... 7000 Hz.
In 1958, the radiola was upgraded to the Lux-2 model.
The design of the radio remains the same.
The electrical circuit was improved, the HF subbands were adjusted, the range of reproducible frequencies expanded to 50...13000 Hz in the VHF-FM range and up to 60 ... 10000 Hz during EPU operation.