Communications Receiver R-820

Kenwood, Trio-Kenwood Inc.; Komagane

Data
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  • Year
  • 1978/1979 ?
  • Category
  • Amateur-Receiver (amateur bands, may include broadcast bands)
  • Radiomuseum.org ID
  • 81210
    • alternative name: Trio Corp.
    • Brand: Jennen

 Technical Specifications

  • Number of Transistors
  • 89
  • Semiconductors
  • Main principle
  • Superhet, double/triple conversion
  • Wave bands
  • Short Wave (SW only)
  • Power type and voltage
  • Line / Batteries (any type) / 100; 120; 220; 240 / 12 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 1.5 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Communications Receiver R-820 - Kenwood, Trio-Kenwood Inc.;
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 333 x 153 x 335 mm / 13.1 x 6 x 13.2 inch
  • Notes
  • Kenwood Communications Receiver R-820.
    Coverage 160, 80, 40, 20 10 m HAM bands, 49, 31, 25, 19, 16 m broadcast bands; Modes: AM, USB, LSB, CW; variable bandwidth, IF shift, Notch filter, crystal calibrator; digital readout.
    Matching the speaker SP-820 and VFO VFO-820.
    Matches transmitter TS-820S.
  • Net weight (2.2 lb = 1 kg)
  • 12 kg / 26 lb 6.9 oz (26.432 lb)
  • Author
  • Model page created by Martin Bösch. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

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

 Forum

Forum contributions about this model: Kenwood, Trio-: Communications Receiver R-820

Threads: 1 | Posts: 1

I have got a nice R820,however I had a problem: particularly on the high end of bands the frequency was drifty,it goes for ex from 7500 to 7900khz,sometimes the display swiched out.I supposed that the cause was in the VFO.After downloading the service manual,I removed the VFO unit,happily it is easy to do.As I supposed the cause was the flat spring on the variable capacitor rotor. I put deoxyd,and I retensioned it by adding a glued little piece under the edge of the spring.Since I have done this,no trouble appears again,the display is  stable and there is no frequency drift.I hope this can help owners of this marvellous receiver.I have put a picture of the VFO open.

Olivier.

Attachments

Olivier Palix, 08.Mar.13

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