hello: friends I come from china

I just got a old tube radio but it is not working,I want to fix it by myself,first I need a electronic diagram and what is the function of part: AEG 250 B 60,SOCKET:L. how to sudsitutie it .thanks in advance

the radio: Grundig 1004UFW

:hello: friends I come from china
:
:I just got a old tube radio but it is not working,I want to fix it by myself,first I need a electronic diagram and what is the function of part: AEG 250 B 60,SOCKET:L. how to sudsitutie it .thanks in advance
:
:the radio: Grundig 1004UFW

I have another question, why I can't find grundig brand on this resources page,as my understanding grundig is a very famous brand in the world.is there a net page soecial for grudig radio? thanks

Grundig radios were made in Germany. The schematics published by Rider (the ones on this website) are for U.S. radios.

::hello: friends I come from china
::
::I just got a old tube radio but it is not working,I want to fix it by myself,first I need a electronic diagram and what is the function of part: AEG 250 B 60,SOCKET:L. how to sudsitutie it .thanks in advance
::
::the radio: Grundig 1004UFW
:
:I have another question, why I can't find grundig brand on this resources page,as my understanding grundig is a very famous brand in the world.is there a net page soecial for grudig radio? thanks
:
:

:Grundig radios were made in Germany. The schematics published by Rider (the ones on this website) are for U.S. radios.
:
:
:::hello: friends I come from china
:::
:::I just got a old tube radio but it is not working,I want to fix it by myself,first I need a electronic diagram and what is the function of part: AEG 250 B 60,SOCKET:L. how to sudsitutie it .thanks in advance
:::
:::the radio: Grundig 1004UFW
::
::I have another question, why I can't find grundig brand on this resources page,as my understanding grundig is a very famous brand in the world.is there a net page special for grudig radio? thanks

thanks a lot

For German and other European vintage radios try this site:

www.radiomuseum.org

I have emailed to you some information a Grundig model 1004W. Could not find anything about 1004UFW. Hope the data helps you.

Dennis.

:I have emailed to you some information a Grundig model 1004W. Could not find anything about 1004UFW. Hope the data helps you.
:
:Dennis.

Hello Dennis:

thank you for your diagram!

I have a question need your help,when I switch on this Grundig 1004W radio,there is a big self-excitation noice happened.this noice is nothing with the adjustment of voice tunner knob,it is very aloud and when I take all the tubes out,the noice is the same.can you give me advice how to fix it. thanks a lot.


Best Regards

Jin from Germany

Jin,

I have no idea as to what your level of expertise and knowledge is concerning electronic repair and servicing of vintage tube radios.

I can only make a few suggestions in the hope that you will be able to successfully repair your Grundig 1004W.

First of all..........if, when you power up the radio there is a loud hum that is not controllable by the volume control, that would indicate that the power supply filter capacitors are shorted or leaking. These would be the large electrolytic (polarized) capacitors. You would have to replace these capacitors as well as any other paper/wax type capacitors as they are most likely faulty also. This is known as "re-capping" a radio.

For excellent tutorials on tube radio repair go to :

http://antiqueradios.com/resources/Repair_and_Restoration/

This website has a great forum as well as many, many radio repair articles and tutorials in the "RESOURCES" section.

Also...thye "References" section of THIS website offers a number of tutorial articles that are very good.

Regards,

Dennis.