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The all-wave tuner "Adagio" was developed at VNIIRPA in 1981. The first domestic all-wave Hi-Fi tuner with the code name Adagio was developed at VNIIRPA and manufactured in a small amount. The technical solutions used in it will later be reflected in the Laspi-004-stereo and Laspi-005-stereo models. The real sensitivity of the tuner on the AM and FM paths is 25 and 1 μV, respectively, the selectivity on the mirror and other additional reception channels in the VHF band is 110 dB, in all others at least 50 dB, the harmonic ratio at 1 kHz when receiving stereo programs is 0.2 % monophonic (also in the VHF range) 0.1%; crosstalk between stereo channels at 1 kHz not less than 46 dB. For the first time, the tuner uses: a frequency synthesizer in all bands, a single-loop position-speed node for tuning and band switching, electronic memory for 15 fixed settings with indication of the first free cell, a keyboard for directly entering frequency values "‹"‹or selecting a fixed setting. The model has an alphanumeric indicator of frequency, range and number of a fixed setting, a multipath reception indicator, and an electronic stereo balance control. There are bandwidth adjustments for the IF in both the AM path and the FM path, automatic maintenance of the specified signal-to-noise ratio when receiving stereo broadcasts of remote radio stations. In addition, the tuner has a Dolby noise reduction unit (operating in the VHF range), an electronic system for adjusting the radiation pattern of the built-in magnetic antennas, and a single sideband allocation unit in the AM path for interference tuning. Two pairs of stereo head phones or an external high-quality woofer amplifier can be connected to the tuner. In the serial production of the tuner "Adagio" was not launched.