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Magnetophon 204 M-204

Magnetophon 204 M-204; Telefunken (ID = 355905) R-Player
 
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Magnetophon 204 M-204; Telefunken (ID = 597312) R-Player
Telefunken: Magnetophon 204 M-204 [R-Player] ID = 597312 819x696
Select picture or schematic to display from thumbnails on the right and click for download.
For model Magnetophon 204 M-204, Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
 
Country:  Germany
Manufacturer / Brand:  Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Year: 1966–1968 Category: Sound/Video Recorder and/or Player
Semiconductors (the count is only for transistors) 18: AC150 AC122 AC117 AC175 AC124 AC123 AC152 OA150
Main principle Audio-Amplification
Wave bands - without
Details Tape Recorder
Power type and voltage Alternating Current supply (AC) / 110; 127; 220; 240 Volt
Loudspeaker 2 Loudspeakers
Power out 12 W (unknown quality)
from Radiomuseum.org Model: Magnetophon 204 M-204 - Telefunken Deutschland TFK,
Material Wooden case
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 470 x 225 x 355 mm / 18.5 x 8.9 x 14 inch
Notes Vierspur-Stereo; Bandgeschwindigkeiten: 9,5/19 cm/s; Spulen-Ø 18 cm. Stereo-NF-Verstärker mit 2 Gegentakt-Endstufen je 6 W.
Einige Halbleitertypen mehrfach vorhanden.
Es gibt einen Ersatzmotor von Telefunken.
Net weight (2.2 lb = 1 kg) 14.5 kg / 31 lb 15 oz (31.938 lb)
Collectors' prices  
External source of data erb
Source of data Handbuch VDRG 1966/1967
Mentioned in Handbuch VDRG 1967/1968
Literature/Schematics (1) -- Original-techn. papers.


All listed radios etc. from Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH
Here you find 3352 models, 2912 with images and 1930 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




 


Forum contributions about this model
Telefunken: Magnetophon 204 M-204
Threads: 2 | Posts: 12
Hits: 3124     Replies: 8
telefunken: M-204; Magnetophon 204
Bob Isaac
30.Mar.11
  1

  With Herr Bauer's wise guidance, I was able to route the exsisting belts correctly. Unfortunately, the main drive belt is stretched a bit too much and frequently jumps off of the pulleys.  There may be a way to adjust the tension, but I do not see it.  Does anyone know how to do this?

If there is no tension adjustment, does anyone have a source for replacement belts for this tape player?

 

Thank you,

Bob

Wolfgang Bauer
31.Mar.11
  2


Hallo Bob,

there is no adjustment.
I think the belt 1 and 2 has the dimension 140 × 2,5 mm round, but that is not safe.
Please check my details.
You should still get in good radio-workshops.
 

Regards WB.


 

Michael Watterson
02.Jan.12
  3

In the late 1970s we "repaired" stretched or snapped belts, or made smaller replacements out of larger ones by cutting with a scalpel or craft knife and joining the ends with superglue (Cyanoacrylate). This kind of glue actually works better with synthetic rubbers and elastomers than other materials, and other kinds of glue "peel off".

The machines were a mix of reel to reel, N1500, N1700, Umatic, VHS and Betamax video recorders.

 

Bob Isaac
02.Jan.12
  4

I first attempted the superglue method, but didn't have any lasting success. My repairs would only hold for less than an hour of play.  After readin Herr Bauer's comment, I 'googled' for German shops advertising reel-to-reel repair parts and found a shop that carried the correct belts.  It now plays beautifully.

Michael Watterson
02.Jan.12
  5

Glad to hear it!

The superglue method does need practice and very thin application, then holding the ends together with just the "right" pressure for a few minutes. If the belt is too tight, or joint subject to shearing forces, then the glue fails. The gel kind or kinds for glass have additives that are bad for this application.

Bob Isaac
02.Jan.12
  6

I should have mentioned in my reply that I was certain that my lack of success was due to inexperience and poor application rather than any failure of the technique.

This is equally applicable to most of my meager efforts concerning radio repair! Ha ha!

 

Todd Urness
17.Mar.12
  7

I recently purchased a Telefunken Magnetophon 204. It's in great condition except that the belts needed changing. Unable to find a local supplier, I used O-rings for belts instead. They seem to work fine except the belt responsible for changing the tape speed jumps off the small pulley when changing to a slower speed. I cannot read German and I can't seem to find a service manual that's in English. Does a service manual exist in English?  Furthmore, there are two pulley sizes on the motor. I am guessing this is to compensate for 50 or 60 Hz power line frequency. Since I am in Canada, I placed the belt over the smaller sized pulley since the motor will spin faster on 60Hz than 50Hz. Please let me know if this is correct.

Any comments or suggestions would greatly be appreciated since I really want to get this beautiful piece of equipment working again.

 

Thanks!

Todd Urness

 

 

Wolfgang Bauer
29.Mar.12
  8

Hallo Todd,

here you have an adjustment instruction.
Unfortunately only in German.
Maybe it will help further.

Regards WB.
 

Attachments

Todd Urness
01.Apr.12
  9

Thanks Wolfgang. I think I can decipher the German and figure out what's going on. Take care!

 
Hits: 2452     Replies: 2
telefunken: M-204; Magnetophon 204
Bob Isaac
08.Mar.11
  1

Does anyone have a belt diagram for this tape deck?  Mine has a rattle that makes me think the belts are not routed correctly.

 

Or perhaps the tension is out of adjustment. When I attempt to fast forward a tape, the belts come off of the pullies.  I could also use some advise on that topic as well!

 

Thank you!

Bob

Wolfgang Bauer
09.Mar.11
  2


Hallo Bob,

I've loaded the necessary documents to the model Magnetopon M204TS.

I think that the construction are identical.

Best wishes WB.
 

Bob Isaac
10.Mar.11
  3

Vielen Dank Wolfgang,

This is exactly the information I am looking for.  I see several adjustments on these diagrams that I did not notice by looking over the unit.  Hoepfully the drive belt is not too damaged from repeatedly jumping off of the pullies!  I have several 'new' tapes that I realy want to listen to, so thank you again for pointing me to these schematics!

All the Best,

Bob

 
Telefunken: Magnetophon 204 M-204
End of forum contributions about this model

  
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