blaupunkt: 4W649H;

ID: 290457
? blaupunkt: 4W649H;  
12.Jun.12 21:59
32

Bill Liers (USA)
Articles: 17
Count of Thanks: 7
Bill Liers

Hallo,

I have recently found a Blaupunkt model 4W649 (M). I see no such number in the listings and the dial shows UKW in the modern band. The tube lineup is the same as the 4W649 HM with an EM11 for the eye. I also see a connection board for UKW on the similar models. Would someone please clarify as to how the FM is added so that the dial would be used. Also is this model somehow previously unlisted? The radio is in the cleaning phase presently and I have not yet compared to the other schematics.

regards, Bill

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 2
Please picture inside the radio 
13.Jun.12 08:28
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Francisco Alemany Molina (E)
Articles: 33
Count of Thanks: 9

Hello please put a photo of the interior, detail of head and FM tuner and the IF cans.

Apparently there is FM tuner head and FI are not FM settings

 

regards

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 3
Additional photos 
13.Jun.12 20:22
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Bill Liers (USA)
Articles: 17
Count of Thanks: 7
Bill Liers

Francisco,

Thanks for your reply. Additional photos of the tuner, IF and underside attached. A closer look reveals an AM only radio which closely matches the others in the 4W649 series.. Some adapter must have been available.

 

regards, Bill

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 4
A solution to have FM 
14.Jun.12 10:17
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Francisco Alemany Molina (E)
Articles: 33
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The images reveal that it is only AM radio.
Add the FM means:
Change switch waves
change FI
Add head tuner.

You can place an FM transistor, the audio signal is connected to the input amplifier phono input or BF. I've done in an apparatus at the request of the owner, the tune that i found adapting the original with the Tandem transistor device, placing a pulley the same diameter to accommodate the turn.

It's just an idea and looks good, is not the best but cheap, I call "bricolage".

regards

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 5
UKW moglichkeit 
14.Jun.12 18:20
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Bill Liers (USA)
Articles: 17
Count of Thanks: 7
Bill Liers

Thank you Francisco,

For the "bricolage" suggestion. It is a good one and always a possibility. However, as the radio back cover says," UKW moglichkeit" from Blaupunkt, I will see if it is possible to find information on this factory option.

regards, Bill

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 6
upload as different model 
18.Jun.12 19:32
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Bruno Gandolfo-Canepa (RCH)
Articles: 121
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Bruno Gandolfo-Canepa

Hello Mr Liers,

Your set with aditional magic eye tube is a different model and you can upload all your information as new model.

After the 4W649 HM was created you can ask about the schematics and aditional help.

Your model was designed "ready to receive the UKW tuner" as many models from the begining of the 50s.

Cordially, Bruno.

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 7
Blaupunkt 4W469M 
19.Jun.12 22:55
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Bill Liers (USA)
Articles: 17
Count of Thanks: 8
Bill Liers

Thank you Bruno, I will be making the model information soon. I will also be searching for the FM adaptor to complete this model. Regards, Bill

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