Vintage Tube radio ussr soviet Kazakstan 1973 year. The receiver is still working. A good exhibit for the collection. The radio “Kazakhstan” was designed for long-term continuous operation without shutdown during and could be used as broadcast, professional and control for radio amateur communications. Cascades and tubes used. HF amplifier (cascade circuit) in the VHF range – 6N14P. Converter and local oscillator in the VHF range – 6F1P. The first IF amplifier in all ranges is 6K4P. The second IF amplifier in all ranges is 6K4P. Amplitude detector and detector AGU – 6X2P. Frequency detector – 6X2P. AGC amplifier – 6Zh2P. Optical indicator – 6E1P. Two-stage ULF – 6N2P. Push-pull terminal ULF – 6N6P. Stabilizer of supply voltage for anodes of heterodyne lamps – SG-1P. Stabilizer of the incandescence of the local oscillator lamps – 0.85B-5.5-12. For the receiver “Kazakhstan-2″ – the second local oscillator – 6Zh2P. Ranges of received frequencies. DV – 150 – 415 kHz; CB – 520 – 1600 kHz; KV-1 – 3.0 – 6.3 MHz; KV-2 – 6.3 – 10 MHz; KB3 – 10.0 – 14.0 MHz; KV-4 – 14.0 – 18.0 MHz; VHF – 64.5 – 73.0 MHz. IF: for the ranges DV, SV, KB – 465 + 2 kHz and for VHF – 8.4 + 0.1 MHz. The real sensitivity of the receiver with an output power of 50 mW and a signal-to-noise ratio of 20 dB, in the DV, SV, KB ranges not worse than 50 µV, in the UKB range with an input impedance of 75 Ohm not worse than 5 µV. Selectivity on the adjacent channel (at +10 kHz detuning) in the LW, SV, KB ranges is not worse than 56 dB, and in the VHF range (at +250 kHz detuning) not worse than 32 dB. Selectivity on the mirror channel in the range of DV – not less than 60 dB, CB – not less than 50 dB, KB – not less than 32 dB and VHF – not less than 26 dB. Infinitely variable bandwidth control at the intermediate frequency in the range from 6 to 12 kHz. The AGC system on the ranges DV, SV, KB provides when the voltage at the receiver input changes by 60 dB, the voltage change at the output is no more than 6 dB. Auto-tuning coefficient – not less than 3. Band of reproducible frequencies by the LF path: in the range of DV – 50 – 6000 Hz; in the range of MW and KB – 50 – 7000 Hz, in the VHF range of 50 – 12000 Hz. The coefficient of nonlinear distortion of the end-to-end path at a modulation factor of M = 60%: at frequencies of 60 – 400 Hz, no more than 4%, at frequencies of 400 – 3000 Hz, no more than 3%, at frequencies of 3000 Hz and above, no more than 4%. Rated output power: 200 mW into 600 ohm load. Receiver background level: no more than 60 dB. Limits of manual volume control: not less than 50 dB. Power consumption: no more than 100 W. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Radios”. The seller is “elektron_store.ua” and is located in this country: UA. This item can be shipped worldwide.