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Othello-Stereo Z320 Ch= 2/632

Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 48987) Radio
 
Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 48988) Radio
 
Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 48989) Radio
 
Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 48990) Radio
 
Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 48991) Radio
 
Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 48992) Radio
 
Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 48993) Radio
Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 2409021) Radio Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 2409024) Radio
Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 2409022) Radio Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 2409023) Radio
Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 2280387) Radio Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 2280388) Radio
Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 2280389) Radio Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 2280390) Radio
Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 2280391) Radio Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 1242603) Radio
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Othello-Stereo Z320 Ch= 2/632; Nordmende, (ID = 2409021) Radio
Nordmende,: Othello-Stereo Z320 Ch= 2/632 [Radio] ID = 2409021 1400x929
Select picture or schematic to display from thumbnails on the right and click for download.
For model Othello-Stereo Z320 Ch= 2/632, Nordmende, Norddeutsche Mende-Rundfunk GmbH (Sterling), Bremen-Hemelingen
 
Country:  Germany
Manufacturer / Brand:  Nordmende, Norddeutsche Mende-Rundfunk GmbH (Sterling), Bremen-Hemelingen
Year: 1961/1962 perfect model Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 9: ECC85 ECH81 EF85 EABC80 EM84 ECC83 ECC83 EL84 EL84
Main principle Super-Heterodyne (Super in general); ZF/IF 460/10700 kHz
Tuned circuits 8 AM circuit(s)     10 FM circuit(s)
Wave bands Broadcast, Long Wave, Short Wave plus FM or UHF.
Details
Power type and voltage Alternating Current supply (AC) / 110, 125, 150, 220, 240 Volt
Loudspeaker 4 Loudspeakers
Power out
from Radiomuseum.org Model: Othello-Stereo Z320 Ch= 2/632 - Nordmende, Norddeutsche Mende-
Material Wooden case
Shape Tablemodel with Push Buttons.
Dimensions (WHD) 650 x 370 x 285 mm / 25.6 x 14.6 x 11.2 inch
Notes dreh- und abschaltbare Ferritantenne; Stereo-NF-Verstärker mit zwei Endstufen je 5,5 W. Gehäuse poliert oder mattiert.
Net weight (2.2 lb = 1 kg) 15.7 kg / 34 lb 9.3 oz (34.581 lb)
Price in first year of sale 495.00 DM
Collectors' prices  
External source of data Erb
Source of data HdB d.Rdf-& Ferns-GrH 1961/62
Literature/Schematics (1) -- Original-techn. papers.


All listed radios etc. from Nordmende, Norddeutsche Mende-Rundfunk GmbH (Sterling), Bremen-Hemelingen
Here you find 1695 models, 1581 with images and 1215 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
Nordmende,: Othello-Stereo Z320 Ch= 2/632
Threads: 7 | Posts: 17
Hits: 334     Replies: 1
nordmende: Nordmende,: Othello-Stereo Z320 Ch= 2/632 [Radio] ID = 12442
Daniel Gallant
17.Jun.19
  1

 

I just purchased this beautiful German Radio and I would ike some advise on trying to turn it on, the sole owner told me that the radio worked great seven years ago which was the last time they listened to it.

It is all in German ..naturally ,I do not even know how to turn it on besides plugging it in the 110 v socket.

this is one I will keep in my collection .

Thank you in advance

Rolf Beckers
17.Jun.19
  2

Dear Daniel,

First of all you have to change the line voltage at the selector switch at the back of the radio to 110V.     ( I assume yo got the radio from Europe and it is connected to 220V) Then yopu have to change the fuse to o.8 or 1Amp as the current cinsumtion is double on 110V then on 220V. For all this you have to open the backplane.

To turn on the radio, just press UKW (what is FM) and if there are no failures at your radio everything should work. 

Regards, Rolf

 
Hits: 793     Replies: 1
nordmende: Nordmende Valve radios
Maurice De Wilde
26.Apr.17
  1 There is an internet site www nvhr.nl They have schematics of Nordmende vintage Tube radios,models that do not seem to appear in the Radiomuseum top collection.Of the various Nordmende models there are different variations that do not seem to appear there. In went looking at www nvhr.nl for the Nordmende Othello Stereo,the model here has the ECLL800 valves as power Penthode compared to the Radiomuseum,s EL84.When the model has the ECLL800 it is a later model.Also if the IF transformers are not round but rectangular these models are a later variant of the same model. These downloads seem to be free to download Maurice Dewilde
Mark Hippenstiel
26.Apr.17
  2

Dear Maurice,

NVHR is the Netherlands Association for the History of Radios, and the list you refer to is a joint effort of NVHR and the GFGF (the German counterpart).

The schemas they present are all pretty much standard, but yes, of course there may be some listed there that we don't yet show. Many (that is to say, most) of our models of the German manufacturer Nordmende stem from documentation and catalogs from Germany. Often, export variations aren't listed in those catalogs, and the schematics for these sets rarely found there way to repair shops and retailers in Germany. So it can happen that while there was a sizeable export business, information is difficult to come by.

If you find any such models that are not yet represented in radiomuseum, please, feel free to make a model suggestion!

Regarding your ECLL800 variant: I looked up the Nordmende Othellos that are present at NVHR, but I could not find one with this tube there. Can you provide a link? There is only one chassis I can think of, the 5/633 from 1964/1965 , but we don't list Othello with that chassis.

Thanks,
Mark

 
Hits: 1214     Replies: 5
nordmende: Forumsbeitrag enthält falsches Modell
Heinz LUCAS
09.Jun.16
  1

Der Forumsbeitrag von Herrn Kamann, bezüglich Austausch der Ero-Kondensatoren, bezieht sich nicht auf das Modell Othello Z320, sondern auf das Modell Othello mit Chassis 3/616.

Die gezeigte Endstufenplatine wurde nicht im Othello Z320 verbaut.

Gidi Verheijen
10.Jun.16
  2

Hallo Herr Lucas,

Das Bild das Herr Kamann ein paar Tage später (am 4. Januar 2004) in seinem Forumsbeitrag zeigt gehört jedenfalls einwandfrei zum Modell Othello Z320.

Gidi Verheijen

Wolfgang Bauer
10.Jun.16
  3

Das muß ich leider korrigieren,

die Endstufenplatine gehört eindeutig zum Modell Othello Stereo U320 Ch= 0/632.
Siehe den von mir hochgeladenen Schaltplan ID= 2004016.

Chassis Z320 Ch= 2/632 hat eine Beschaltung ohne Printplatte.
Chassis 3/616 hat eine durchgehende Printplatte.

MfG. WB.

Heinz LUCAS
10.Jun.16
  4

Unser Museum wird auch in Jahrzehnten noch existieren, deswegen wäre es sinnvoll, die Fotos von Herrn Kamann dem richtigen Modell zuzuordnen..

Bernhard Nagel
14.Jun.16
  5

Der Forumsbeitrag Othello-Stereo: ERO Kondensator gefährdet? wurde dem richtigen Modell Othello Stereo U320 zugeordnet.

Heinz LUCAS
14.Jun.16
  6

Danke Herr Nagel, zukünftige Nutzer werden sich darüber freuen.

 
Hits: 1919     Replies: 1
nordmende: Z320 Ch= 2/632; Othello-Stereo
Wolfgang Bauer
26.May.12
  1

Zur Erleichterung der Feststellung der Chassisbezeichnung dieser Link:

==> Chassisbezeichnungen 0/632; 1/632; 2/632.

MfG. WB.

Wolfgang Bauer
26.May.12
  2


Hier noch den Link zu den Typenbezeichnungen, die auf dem Kleber am Chassis zu finden sind.
Allerdings ist unbedingt auch Post 2 zu berücksichtigen: Wir bringen das Jahr der Markteinführung.

 
Hits: 2210     Replies: 2
nordmende: Ch=2/632; Othello-Stereo
Hernani Capela
01.Mar.08
  1

Hi,

Radio Nordmende  Md. Othello-Stereo Ch=2/632    ID 23821

With a schematics of Rmorg  I had start work in that radio, after remove/change  a few capacitor and change some tube it’s start work. with a big sound not quality!

I need to confirm the good align of the IF tuner’s, in order to increase a good signal/sound, but the original doc is in German and the automatic translation in PC do not work  right  ( not work ).

Is possible someone (a good person)  translate  for English !!??

For all community Thanks

Hernani Capela

Thomas Albrecht
01.Mar.08
  2

Perhaps this will help. 

Translation of the text at the top of the first page of alignment instructions ( d_nordmende_1962_othello_stereo_abgl1.pdf ).

Alignment instructions for AM

IF 460 kHz

Push button "M" -- Turn tuning capacitor to the left end of the dial (1650 kHz).  Set the bandwidth to "narrow" by pulling out on the left outer knob.  Turn up the volume all the way.  Set the tone to "Hell" ("bright").  Couple a signal generator via a dummy antenna (200 pF capacitor and 400 ohm resistor in series) to the control grid of the ECH81.  Connect an output meter to pins 1 and 2 of socket (15) or (16).  First detune IF circuits II, IV, and V.  Then tune IF circuits I, III, and VI for maximum signal.  Then tune circuits II, IV, and V for maximum signal.  Connect the dummy antenna to the antenna and ground terminals and adjust the IF trap for minimum signal strength. 

Be sure to follow the prescribed order for the following adjustments:

Medium wave ferrite antenna

First push button "PA."  Turn tuning capacitor to the right end of the dial (515 kHz), and set the pointer position to line up with the end mark on the dial.  Set the dial to 555 kHz and adjust oscillator coil a and  compensation coil c for maximum signal.  Tune the dial to 1480 kHz and adjust oscillator trimmer b and antenna trimmer d for maximum signal.  Repeat these adjustments until no further improvement is possible.

Medium wave external antenna

Release push button "PA."  Set the dial to 555 kHz and adjust front end coil e for maximum signal, and then set the dial to 1480 kHz and adjust front end trimmer f for maximum signal.

Long wave

Push button "L."  Tune the dial to 210 kHz and adjust oscillator coil g and front end coild h for maximum signal.  (For technical reasons, there is no adjustment of the long wave ferrite antenna.)

Short wave

Push button "K."  Set the dial to 6.1 MHz and adjust oscillator coil i and front end coild k for maximum signal.  The oscillator frequency should be above the receiving frequency.  The image of 6.1 MHz appears at 7.02 MHz on the dial.  At 17.9 MHz, adjust front end coil l.  Repeat these adjustment until no further improvement is possible.

The following is a translation of the alignment instructions on the second page (d_nordmende_1962_othello_stereo_abgl2.pdf). 

Alignment instructions for FM IF

1.  Attach the signal lead of a signal generator to the glass nib (evacuation cap) of the ECC85 [I'm not positive if I've translated this correctly...].  Attach the ground lead of the signal generator to the shield of the ECC85.  Connect an output meter to pins 1 and 2 of socket (15) or (16). 

2.  Detune circuits 6 and 2.

3.  Set the signal generator to output an FM-modulated signal at 10.7 MHz and adjust for maximum signal in the following order:  Circuits 3, 4, 1, 5, 2, and 6.

4.  Set the signal generator to output an AM-modulated signal at 10.7 MHz and fine tune circuit 6 for minimum output.  When doing so, make sure that the voltage across the electrolytic capacitor in the ratio detector circuitry stays below 2.5 volts.  This should be measured with a high impedance (> 10 kohm) DC voltmeter.

The following is a translation of the alignment instructions on the second page (d_nordmende_1962_othello_stereo_seil.pdf).

Alignment instructions for FM front end

Turn the tuning capacitor so that the plates are fully meshed.  Adjust the FM dial pointer so that it lines up with the end mark on the dial.  Connect a 240 ohm output impedance signal generator to the antenna input.

1.  Setting the frequency range:  With the tuning capacitor plates fully meshed, set the signal generator to 86.7 MHz and adjust oscillator coil D for maximum signal.  Then set the signal generator to 100.5 MHz, and with the tuning capacitor plates fully unmeshed, adjust oscillator trimmer C for maximum signal.

2.  Coupling circuit alignment:  Adjust RF coil G at 88 MHz and RF trimmer F at 98 MHz for maximum signal.  Repeat these adjustments until no further improvement is possible.

3.  Check of oscillator amplitude:  The oscillator amplitude should be between 2 and 4 volts over the entire tuning range.

4.  Point H is useful for adjustment of the neutralization of the RF front end stage.  Should adjustment of the neutralization be necessary, it is necessary to remove the B+ from the RF front end stage (R 59) before adjustment.

5.  The correct adjustment of the neutralization trimmer E is needed to minimize radiation of interference signals from the receiver.  Adjustment takes place at the factory to minimize radiation.  Further adjustment should generally not be attempted.

-------

Good luck with your alignment!

Best regards,

Tom

Hernani Capela
01.Mar.08
  3

Many thanks for your  help

I hope that way make the correct alignment.

Best Rgards

Hernani

 
Hits: 1919     Replies: 0
nordmende: ; Othello-Stereo: Demontage der Schallwand
Hans Kamann
04.Jan.04
  1

Zur Demontage der Schallwand ist das im roten Bereich befindliche Holzstück zu entfernen. Es ist unter den Deckel geleimt.

 
Hits: 2318     Replies: 0
nordmende: ; Othello-Stereo - Typenbezeichnung
Hans Kamann
31.Dec.03
  1

Der Chassistype dieses Gerätes ist: "860.632.052" ( wichtig für Schaltpläne )

T.Nr. ist "U320/"

 
Nordmende,: Othello-Stereo Z320 Ch= 2/632
End of forum contributions about this model

  
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