radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

Opus 7 HiFi-System Licensed by Armstrong grille bars

Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 902594) Radio
 
Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 902595) Radio
 
Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 902596) Radio
 
Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 902597) Radio
 
Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 902598) Radio
 
Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 902599) Radio
 
Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 902600) Radio
 
Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 902601) Radio
 
Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 902602) Radio
 
Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 902603) Radio
Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 873601) Radio Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 137580) Radio
Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 656503) Radio Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 10602) Radio
Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 656494) Radio Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 10605) Radio
Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 10604) Radio Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 656496) Radio
Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 656497) Radio Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 656499) Radio
Use red slider bar for more.
Opus 7 HiFi-System Licensed by Armstrong; Telefunken (ID = 873601) Radio
Telefunken: Opus 7 HiFi-System Licensed by Armstrong [Radio] ID = 873601 652x490
Select picture or schematic to display from thumbnails on the right and click for download.
For model Opus 7 HiFi-System Licensed by Armstrong grille bars, Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
 
Country:  Germany
Manufacturer / Brand:  Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Year: 1956/1957 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 9: ECC85 ECH81 EF89 EF89 EM80 EABC80 EC92 EL84 EL84
Semiconductors (the count is only for transistors) B250C125
Main principle Superheterodyne (common); ZF/IF 460/10700 kHz; Export model
Tuned circuits 8 AM circuit(s)     12 FM circuit(s)
Wave bands Broadcast, Long Wave, Short Wave plus FM or UHF.
Details
Power type and voltage Alternating Current supply (AC) / 110-120 Volt
Loudspeaker 6 Loudspeakers
Power out
from Radiomuseum.org Model: Opus 7 HiFi-System Licensed by Armstrong [grille bars] - Telefunken Deutschland TFK,
Material Wooden case
Shape Tablemodel with Push Buttons.
Dimensions (WHD) 660 x 415 x 280 mm / 26 x 16.3 x 11 inch
Notes Export model Telefunken Opus 7 is shown in the Photofact Index as being the same as export model Telefunken Opus 6 which is documented clarly in that said set 341 folder 16 from 12-56 Folder. But Opus 7 has at least the 5 additional push buttons for "Solo, Jazz, Orchester, Bass and Intim" in front of the normal 8 push buttons (both models show). There are at least Version A and B or Chassis. The Opus 7 has been made in two quite different cabinets. One has the usual textile speaker grille in front, the other has vertical wooden bars in front and ony cut outs at the sides in the woods for the other speakers. You find two different pages for them - but not different wones for the color variants which show also different glass scales and knobs.

Until we can deliver schematics for the Opus 7 USA we leave the Opus 6 USA schematics according with SAMS also on model Opus 7 USA. Power Supply 60 Cycles. Supplier was American Elite, Inc., 7 Park Ave., New York.
Net weight (2.2 lb = 1 kg) 15.8 kg / 34 lb 12.8 oz (34.802 lb)
Literature/Schematics (1) -- Original-techn. papers.
Literature/Schematics (4) Photofact Folder, Howard W. SAMS (Date Dec. 1956, volume 341, folder 16)

Model page created by Ernst Erb. See "Data change" for further contributors.



All listed radios etc. from Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Here you find 3444 models, 3028 with images and 2020 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
Telefunken: Opus 7 HiFi-System Licensed by Armstrong
Threads: 1 | Posts: 2
Hits: 1233     Replies: 1
telefunken: 7 Licensed by Armstrong; Opus :
Cuneyt Bakan
25.Jun.15
  1

Dear Members,

I have been working on the restoration of a Telefunken Opus 7.

Per schematics, screen voltage of EF89 in the last IF stage (tube4) should be 25V but I read 40V. All the components around EF89 are OK (C48,C47,W20,W21,C38 and grid resistor).

Anode voltage is around 220V which should be OK as well.

I swapped the EF89 with the one in previous IF stage (which shows the correct voltage values so I assume it is a good tube), still I read 40V. I have tried 3 different EF89s from other radios I have, the result is same.

Any thoughts about this issue?

Thanks in advance,

Cuneyt

 

 

 

Dietmar Rudolph
25.Jun.15
  2

In the '50ies when the Telefunken Opus was produced, voltmeters usually had an internal resistance of 333Ω/V, and some had 1kΩ/V.  Today digital voltmeters read 10MΩ.

The voltages given in the schematic were measured with voltmeters of that time.

However, the internal resistance of a voltmeter loads the measured object. Therefore former low impedance voltmeters read lower values than modern digital voltmeters do.

Regards,

Dietmar

 
Telefunken: Opus 7 HiFi-System Licensed by Armstrong
End of forum contributions about this model

  
rmXorg