Magnoradiol of the highest class "Diamond" in 1958 was developed and manufactured in several copies at the VEF factory. The design and layout of this 24 lamp unit is similar to the Crystal radio. The receiver chassis is integrated in the middle of the cabinet. It, together with the universal player unit, closes the doors. Above the receiver, under the cover, an integrated "Melody" tape panel for two tape playback speeds of 9.53 and 19.06 cm / sec. The device, weighing 172 kilograms, has a powerful two-channel power amplifier built in, which is loaded with a broadband speaker system consisting of eight loudspeakers. In a separate box under the console, an acoustic system is built in, in the front panel of which there are six speakers. Two of them are low-frequency 10GD-18, two for medium frequencies 3GD-7, and two high-frequency VGD-1. Two more VGD-1 loudspeakers are built in, one on each side of the box. Magnitoradiol has a device for automatic tuning and silent electronic-motor tuning to radio stations with remote control, which provides: automatic tuning and silent tuning to the received station directly at the radio; control the radio at a certain distance from it, i.e. power on and off. The radiola has a four-position tone switch (clan-register) and smooth separate tone control for bass and treble. Three-speed electronic pickup with a piezoceramic pickup and two corundum needles and a device for automatic change of phonograph records. Ranges of the received waves: LW: 150 ... 415 kHz; SW: 520 ... 1600 kHz; KV-1: 11.49 ... 12.14 MHz; KV-2: 9.36 ... 9.87 MHz; KV-3: 6.94 ... 7.35 MHz; KV-4: 5.89 ... 6.3 MHz; VHF: 87.5 ... 100 MHz. The rated output power of the low-frequency channel of the amplifier is 4 W, and the high-frequency channel is 3 W. Frequency band: in the ranges of LW, CB, HF - 40 ... 6500 Hz, in the VHF range of 40 ... 15000 Hz, in the playback mode of gramophone and magnetic recording 50 ... 10000 Hz. Power consumption: in the reception mode 260 W, playback of the recording 280 W, the operation of the tape recorder 370 W.The model used lamps: 6Ð3П, 6К4П (3), 6И1П (2), 6Ð¥2П (2), 6Е1П, 6П14П (2), 6Ð2П (6), 6П3С (4), 5Ц3С, 6Е5С, 6П1П.