Othello Ch= 306

Nordmende, Norddeutsche Mende-Rundfunk GmbH (Sterling), Bremen-Hemelingen

Data
Forum
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  • Year
  • 1953/1954
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 19379

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Number of Transistors
  • Main principle
  • Superheterodyne (common); ZF/IF 468/10700 kHz
  • Tuned circuits
  • 8 AM circuit(s)     11 FM circuit(s)
  • Wave bands
  • Broadcast, Long Wave, Short Wave plus FM or UHF.
  • Power type and voltage
  • Alternating Current supply (AC) / 110, 125, 150, 220, 240 Volt
  • Loudspeaker
  • 3 Loudspeakers
  • Power out
  • 5.7 W (max.)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Othello Ch= 306 - Nordmende, Norddeutsche Mende-
  • Shape
  • Tablemodel with Push Buttons.
  • Dimensions (WHD)
  • 640 x 385 x 275 mm / 25.2 x 15.2 x 10.8 inch
  • Notes
  • MW-Ortssendertaste, drehbare Ferritantenne, Bandbreite schaltbar.
  • Net weight (2.2 lb = 1 kg)
  • 12.3 kg / 27 lb 1.5 oz (27.093 lb)
  • Price in first year of sale
  • 398.00 DM
  • External source of data
  • Erb
  • Literature/Schematics (1)
  • -- Original-techn. papers. (ETL-Liste)

 Collections | Museums | Literature

Collections

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

Literature

The model Othello is documented in the following literature.

 Forum

Forum contributions about this model: Nordmende,: Othello Ch= 306

Threads: 3 | Posts: 25

First off, I replaced every resistor that was out of tolerance.  But the transformer got excessively hot after a moment so I turned off the power.  I then proceeded to replace all of the remaining resistors, but the transformer continues to overheat.  Does anyone have some suggestions as to what might be the problem here?   I found none of the capacitors or electrolytics to be neither open nor shorted.

Thank you,

Bob Isaac

Bob Isaac, 30.Dec.11

Weitere Posts (17) zu diesem Thema.

For the life of me, I cannot find the pilot lamp specifications on the schematic for the Nordmende Othello 53.  Does anyone know what this type if bulb is?  All I know is that it is a scew base type of lamp.

 

I also have the same question for the SNR Excelsior 52. Can someone help?

Thank you

Bob

Bob Isaac, 05.May.10

Weitere Posts (4) zu diesem Thema.

I am restoring this same model with the Ortssender key and am seeking instructions for activation and use of this "short-distance transmitter". Does any member know if one of the 3 speakers (the center one) acts as the microphone for speech transmissions?
Robert

Robert Sarbell † 22.3.22, 30.Jun.04

Weitere Posts (4) zu diesem Thema.