Review radio Dzintars Soviet Union in 1960
At the Riga radio plant named after A. S. Popov was developed and serially produced since 1960 the all-wave superheterodyne Dzintars.
Page radio in our website: https://retrotexnika.ru/radiotexnika/...
The range of accepted waves:
1. Long wave: DV - 723 - 2000 m (415 - 150 kHz);
2. Medium-wave: SV - 187, 5 - 577 m (1600 - 520 kHz);
3. Short wave: KBI 40 - 76 m (7.5 - 3,95 MHz);
4. Short wave: KBII of 24.8 - 33.3 m (12,1 - 9.0 MHz)
5. Ultrashort wave VHF 4,11 - 4,65 m (73 and 64.5 MHz).
Electrical parameters
The sensitivity of the ratio signal/noise of 20 dB in the VHF - 25 mV, the other ranges are not worse than 200 µv (really about 50 mV).
Path of the FM (VHF) intermediate frequency of 8.4 MHz, and the selectivity in the detuning of 250 kHz not worse than 30 dB.
Path AM (the other bands) intermediate frequency is 465 kHz, the selectivity in the detuning of 10 kHz in the extreme positions of controller bandwidth (combined with tone control) is not worse than 30 dB ("Wide band") and 40 dB ("Narrow band").
Selectivity on the mirror channel in the DV range of 56 dB, MW 50 dB, 18 dB KBI, KBII and 17 dB VHF 26 dB.
Nominal LF amplifier power - 2 watts and 4 watts.
Tone control to the extreme frequencies of +-10 dB.
The background level is 50 dB.