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Communications Receiver R-820

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Communications Receiver R-820; Trio-Kenwood (ID = 122330) Amateur-R
Trio-Kenwood: Communications Receiver R-820 [Amateur-R] ID = 122330 933x575
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For model Communications Receiver R-820, Trio-Kenwood Electronic Inc.; Komagane
 
Country:  Japan
Manufacturer / Brand:  Trio-Kenwood Electronic Inc.; Komagane
alternative name
 
Trio Corp.
Brand
Jennen
Year: 1978/1979 ? Category: Amateur-Receiver (amateur bands, may include broadcast bands)
Semiconductors (the count is only for transistors) 89:
Main principle Superhet, double/triple conversion
Wave bands Short Wave (SW only)
Details
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)
from Radiomuseum.org Model: Communications Receiver R-820 - Trio-Kenwood Electronic Inc.;
Material Metal case
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)
Source of data Shortwave Receivers - Past & Present (3rd ed.)

Model page created by Martin Bösch. See "Data change" for further contributors.



All listed radios etc. from Trio-Kenwood Electronic Inc.; Komagane
Here you find 751 models, 673 with images and 198 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
Trio-Kenwood: Communications Receiver R-820
Threads: 1 | Posts: 1
Hits: 1176     Replies: 0
trio-kenwo: R-820; display
Olivier Palix
08.Mar.13
  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.

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Trio-Kenwood: Communications Receiver R-820
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