Radiola network tube `` Vef-Radio ''.
Network tube radiosDomesticRadiola "VEF-Radio" ("VEF-Radio-65") from the beginning of 1965 was produced by the Riga Electrotechnical Plant "VEF". The radiola consists of an 8-tube superheterodyne receiver of the first class and a 3-speed electric playing device III-EPU-20 (II-EPU-40). The radio receiver is designed for reception in the ranges of DV, SV, HF and VHF, the HF range is divided into two sub-bands. The radio has a smooth tone control for HF and LF. The schematic diagram of the radio is similar to the circuit of the Rigonda-mono radio, with the exception of small changes in the values of the elements in the KSDV-PCh and BP unit and differs in the design of the case, which can be floor-standing and (or) desktop. The speaker system consists of a 4GD-4 loudspeaker. The dimensions of the radio are 740x336x320 mm. Weight 21 kg. Ranges: DV 150 ... 408 kHz, SV 525 ... 1605 kHz, KV-1 3.95 ... 7.4 MHz, KV-2 9.1 ... 12 MHz and VHF 65.8 .. .73 MHz. Sensitivity with an external antenna in the LW, SV, KV ranges - 50 µV, in the VHF range 5 µV. Sensitivity with a magnetic antenna in the ranges DV, SV 1.5 mV / m. In the AM path, IF is 465 kHz, 6 dB attenuation bandwidth at 5 kHz narrowband, 11 kHz wideband, and 15 kHz local reception. In the FM path, the IF is 6.5 MHz, the bandwidth is 150 KHz. AM selectivity 60 dB. AGC provides a signal change at the output by 11 dB with a change at the input by 40 dB. Maximum output power 3.5W. The operating frequency range of the AM path is 80 ... 6000 Hz, the FM path is 80 ... 12000 Hz, the recordings are 80..10000 Hz. The EPU is equipped with an autoswitch and a microlift and is designed to play records at speeds of 78, 45 and 33 rpm. Power consumption when receiving 60 W, and when listening to a record 75 W.
