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Gross-Super 776WK T776WK

Gross-Super 776WK T776WK; Telefunken (ID = 37579) Radio
 
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Gross-Super 776WK T776WK; Telefunken (ID = 19864) Radio
Telefunken: Gross-Super 776WK T776WK [Radio] ID = 19864 763x489
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For model Gross-Super 776WK T776WK, Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
 
Country:  Germany
Manufacturer / Brand:  Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Year: 1937/1938 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 6: ACH1 AF3 AB2 AL4 AM2 AZ1
Main principle Super-Heterodyne (Super in general); ZF/IF 468/473 kHz
Tuned circuits 7 AM circuit(s)
Wave bands Broadcast, Long Wave and Short Wave.
Details
Power type and voltage Alternating Current supply (AC) / 110-240 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Radiomuseum.org Model: Gross-Super 776WK T776WK - Telefunken Deutschland TFK,
Material Wooden case
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 645 x 348 x 338 mm / 25.4 x 13.7 x 13.3 inch
Notes Regelbare Bandbreite. ZF unterschiedlich, je nach Region: westlich 473 kHz, sonst 468 kHz.
Net weight (2.2 lb = 1 kg) 17.2 kg / 37 lb 14.2 oz (37.885 lb)
Price in first year of sale 319.00 RM
Collectors' prices  
Source of data Handbuch WDRG 1937 / Radiokatalog Band 1, Ernst Erb
Circuit diagram reference Lange+Schenk+FS-Röhrenbestückung


All listed radios etc. from Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Here you find 3339 models, 2889 with images and 1921 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



 


Forum contributions about this model
Telefunken: Gross-Super 776WK T776WK
Threads: 2 | Posts: 4
Hits: 1743     Replies: 1
telefunken: 776WK (T776WK); Original BDA
Jochen Amend
10.Apr.12
  1

Hallo verehrte Mitglieder,

durch einen glücklichen Zufall bekam ich heute noch ein verspätetes Osterei. Die Original Bedienungsanleitung dieses Gerätes. Nun ist es aber so, dass diese schon vor Jahrzehnten mit Tesa Film geklebt wurde. Durch die lange Lagerung in einer Plastikhülle, sind die Klebestreifen so steif geworden, dass ich das Papier nicht beschädigungsfrei auseinanderfalten kann.
Kennt sich jemand mit der Behandlung eines solchen Problems (zumindest für mich ein Problem) aus? Wie kann ich so etwas wieder geschmeidig machen? Mit Wärme?

Vielen Dank für jede Idee hierzu!

Beste Grüße,

Jochen

Attachments

Jochen Amend
12.Apr.12
  2

Ich habe mal einen Scan angehängt.

 
Hits: 2995     Replies: 1
telefunken: 776WK; Gross-Super - LW contacts on Wellenschalt
Robert Sarbell
09.Jun.07
  1 Dear colleagues,

I respectfully request to know if the schematic for this radio should depict the LW contacts on the Wave band switch. I have closely compared this schematic with the model Telefunken 876WK, and I realize they do not have to agree for obvious reasons.

Also, of great interest is the question as follows: If the very fine steel activation cable should break, could the switch then be rotated through a complete 360 degrees, and thus possibly be left in an "indeterminate setting"??

I have just completed a repair of this broken steel cable, and it appears as though this is a very real possibility - please comment.

One final question - Is the original DRALOWID part #7089 designed to be a combination "On-Off/Volume control"? There is a slight "spring action" in the shaft, but there is no detent for an On-Off function - volume control is fine.

Respectfully,
Robert
Robert Sarbell
04.Jul.08
  2 Gentlemen,

This posting relates to servicing problems on my Telefunken model 776WK but is cross-referenced also to the models AEG 78WK and the Telefunken 876WK due to VERY common circuitry. . . . I also place a similar post to the TFK 776WK model.

While reviewing the complete schematics - and especially for the AM2 to AL4 audio coupling capacitors on the model AEG 78WK, and very similar circuits on the Telefunken 776WK and Telefunken 876WK - I noticed the switchable extra coupling capacitor installed on the AEG78 and the TFK 876WK - but not on the telefunken 776WK.

Was that perhaps an intentional circuit change, or an omission on the schematic of the 776WK.

There are also differences within the AL4 output (control grid g1 resistor ratings) on the respective models - from 100/.5M ohms to 1,000/.5M ohms

I had for a brief period of time reception of stations on the MW and KW bands although the alignment was off by approximately 60 to 70kHz. After replacing the BF2 transformer, and confirming continuity on both sides, now I am back to the "mute" radio. . .

I would be most appreciative if any member has had similar experiences and could provide some helpful hints!

NOTE:
All tubes have been replaced with new ones, EXCEPT the AB2 detector. . . .That tube has been ordered from a seller in Europe and will be installed within the next week or so.

Respectfully,
Robert
 
 
Telefunken: Gross-Super 776WK T776WK
End of forum contributions about this model

  
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