US (УС) PR-4 (ПР-4) PR-4V (ПР-4В)

Nizhegorodsky Lenin Works (NITEL)

  • Year
  • 1948–1956
perfect model
  • Category
  • Commercial Receiver (may include amateur bands)
  • ID
  • 73057

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 8
  • Main principle
  • Superhet with RF-stage; ZF/IF 112 kHz
  • Wave bands
  • Broadcast, Long Wave and more than two Short Wave bands.
  • Power type and voltage
  • Storage and/or dry batteries / 25,5 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from
  • Model: US PR-4 PR-4V - Nizhegorodsky Lenin Works
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 320 x 135 x 180 mm / 12.6 x 5.3 x 7.1 inch
  • Notes
  • Information by member Valery Gromov: "This PR-4P post-war model is existant since 1948, made by Radio Works No. 197 of Gorky-city (nowadays Nizhny Novgorod). The civil name of the factory was "Lenin Radio Works of Gorky-city" (Gorkovsky Radiozavod named after Lenin).

    There is the two quite different models Air Force model US-4, using metal tubes with 6.3V filaments, and the US-4S infantry model, using glass tubes with 2V filaments. Both US-4 and US-4S were manufactured at Novosibirk Radio Works No. 590 (civil name "Novosibirsky Electrosignal") starting from 1943. It is unclear why there was already an US-4 designation for the HRO copycat in 1940 that was manufactured in Riga for the Red Army but was soon taken over by the Germans - and can now be found with the Wehrmacht Reichsadler."

    Old information: AM/CW-receiver for millitary/airborne use, coverage from 0.17 to 12 MHz in five ranges. Needs Hi-Z headset. At first time radio set named US (universal superheterodyne),US-3 (in 1942), after WW2 named US-P, only last models named as PR-4 (P, R, V). Till 1941 produced in one of Moscow factories. After 1941 manufactured in Nizhegorodsk. Used as receiver-block in radio-stations RAF, RSB etc. Used motor type voltage conversion unit(Dynamotor/umformer) type RUK-300V (see foto). It works at 25,5V and supply radio tubes 6,3V (heating) and 200-220V (anode).

  • Net weight (2.2 lb = 1 kg)
  • 6 kg / 13 lb 3.5 oz (13.216 lb)
  • Author
  • Model page created by a member from D. See "Data change" for further contributors.

 Collections | Museums | Literature


The model is part of the collections of the following members.


Forum contributions about this model: Nizhegorodsky Lenin: US PR-4 PR-4V

Threads: 1 | Posts: 1

Meine Damen und Herren, der Historie zur Gerechtigkeit hieß diese Stadt in der Russischen Föderativen Sowjetrepublik (RFSR) ab 1932  "Gorki", nunmehr wieder nach Entscheidung ihrer Einwohner wieder "Nishni Nowgorod". Nishegorodskij ist ein russischer Idiom  für für das adjektivierte "Nishni Nowgorod",

Mfg Hans-Jürgen Heider

Hans Jürgen Heider, 17.Mar.10

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