-40%
Vintage 1950s Original Soviet Rare Army radio receiver R-311 USSR
Vintage 1950s Original Soviet Rare Army radio receiver R-311 USSR
Vintage 1950s Original Soviet Rare Army radio receiver R-311 USSR
Vintage 1950s Original Soviet Rare Army radio receiver R-311 USSR

Vintage 1950s Original Soviet Rare Army radio receiver R-311 USSR

$ 422.4

Availability: 38 in stock
  • Return shipping will be paid by: Buyer
  • Item must be returned within: 30 Days
  • Theme: Militaria
  • Modified Item: No
  • Condition: in good Condition We have not tested the performance as you see on the photos
  • Refund will be given as: Money Back
  • All returns accepted: Returns Accepted
  • Country/Region of Manufacture: Russian Federation

    Description

    Country:
    USSR
    Dating:
    1950s (?).
    Original
    Description:
    We have not tested the performance.
    R-311 - army HF radio receiver.
    Designed to receive telegraph and telephone radio signals in the frequency range from 1 to 20 MHz.
    The radio is made according to the superheterodyne circuit on eight lamps of the 2Zh27L type.
    The radio receiver circuit includes an input circuit, one RF voltage amplification stage, a mixer, a first local oscillator, two intermediate frequency voltage amplification stages, a second local oscillator, a second mixer / detector, and a low frequency voltage amplifier.
    Distinctive features of the radio receiver circuit are: a local oscillator with constant frequency overlap in all subbands, the presence of a quartz filter in the IF gain path with smooth bandwidth control, quartz stabilization of the second local oscillator frequency, which is also used as a quartz calibrator for calibration correction.
    87