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Nagra T-RVR

Nagra T-RVR; Kudelski SA; (ID = 1698169) R-Player Nagra T-RVR; Kudelski SA; (ID = 1698752) R-Player
Nagra T-RVR; Kudelski SA; (ID = 1698765) R-Player Nagra T-RVR; Kudelski SA; (ID = 1698766) R-Player
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Nagra T-RVR; Kudelski SA; (ID = 1698169) R-Player
Kudelski SA;: Nagra T-RVR [R-Player] ID = 1698169 930x678
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For model Nagra T-RVR, Kudelski SA; Cheseaux-sur-Lausanne:
Photo of my ultra rare Nagra T-RVR over the accessory RCHS, Time Code Reader Searcher. This unit has Time Code that facilitates access to special recordings. Nagra T-RVR may be used in cascaded connection with other unities in such a way that extra long time recording are possible, withoul loss of information.
Country:  Switzerland
Manufacturer / Brand:  Kudelski SA; Cheseaux-sur-Lausanne
Year: 1979 Category: Sound/Video Recorder and/or Player
Semiconductors (the count is only for transistors) Semiconductors present.
Main principle Audio-Amplification
Wave bands - without
Details Tape Recorder; Radio Control (+Remote Wire etc)
Power type and voltage Powered by external power supply or a main unit. / 20-30 Volt
Loudspeaker - For headphones or amp.
Power out
from Model: Nagra T-RVR - Kudelski SA; Cheseaux-sur-
Material Metal case
Shape Rack
Dimensions (WHD) 19 x 12.25 x 12.75 inch / 483 x 311 x 324 mm

NAGRA T-RVR - A monaural or stereo machine designed with the 19" rack format. It is a reel to reel 1/4" tape recorder designated for automatic long recording using the four  standard tape speeds. The machine is equipped with an automatic start recording device actuated by the input signal and, at the tape end, allows automatic connection to another machine that starts to record in a new tape without loss of signal. When equipped with the accessory RCHS, Time Code Reader Searcher, the machine allows the high speed search of a particular sequence when its time code had been entered by the keyboard or from its memory. This machine were used by intelligence services of several countries and logging service of radio stations.

[Source: Wikipedia, the free encyclopedia, edited]

Principal features:

  • 3 DC servo-controlled motors, without pinch wheel
  • Uses ¼" tape, 0.5 to 2.0 mil
  • 5 to 7" reel size
  • Recording time: 12 hours, on 7" reel @ 15/16 ips
  • Basic one track model, expandable to 2-Channel plus Time Code
  • Power: 20 to 30 VDC approx. 800 mA
  • Input impedance: > 1 MΩ AC, 250 Hz
  • Line input: single symmetrical line (balanced)
  • Output line: single, asymmetrical, 600 Ω, 0 dBm
  • Headphone output: stereo, min. 2x 25 Ω
  • Limiter: one
  • Fast playback: 4x or 16x stabilized speed to aid quick identification on a given recording
  • Wow & flutter: < 0.09% p-p at 1 7/8 ips
  • Distortion: < 2% at nominal level
  • Frequency response: 170 Hz to 5 kHz at 15/16 ips, to 10 kHz at 1 7/8 ips, to 15 kHz at 3 ¾ ips
  • Signal-to-noise ratio: 50 dB at 15/16 ips, 55 dB at 1 7/8 ips and 58 dB at 3 ¾ ips.
  • Interface for digital remote control available
  • Speed varier: +100%, -50% max.
  • Operating temperature and humidity: 0° to 70°C, 20% to 95% rH

[Technical givens from manufacturer Kudelski S.A.]

Net weight (2.2 lb = 1 kg) 35.25 lb (35 lb 4 oz) / 16.004 kg
Mentioned in - - Manufacturers Literature

Model page created by Moisés Piedade. See "Data change" for further contributors.

All listed radios etc. from Kudelski SA; Cheseaux-sur-Lausanne
Here you find 48 models, 45 with images and 19 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.