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grundig: my grundig satellit transistor 5000 sensitivity is poor

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Forum » Radios and other type of sets (Physics) etc. » MODELS DISPLAYED » grundig: my grundig satellit transistor 5000 sensitivity is poor
           
Chou Chiang-ping
 
 
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28.May.11 11:25

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my grundig satellit 5000 radio sensitivity is poor

finally i find c501 15nf is shorted,cause the af126i transistor base bias is too low

change capacitor then work normal

 

i have a question ?

why this radio volume is on min  position but the audio hiss noise is a little high? 

Marc Gianella
 
 
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30.May.11 19:56

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Dear Mr. Chiang-ping

Your post ist obviously linked to a wrong model (Grundig Musikgeraet 2550 ID=26074 instead of Grundig Satellit Transistor 5000 ID=71126)
Please ask the Moderator to move this thread to the right model.

Concerning your question, I would suggest to have a look at the AF stages. I had a similar problem with a Grundig RTV900a. One of the audio channels had a disturbing hiss which could not be controlled by the volume. All Tensions in the circuitry were ok. After changing the AF pre-stage, the hiss had gone.

Kind regards
Marc

Vincent de Franco
Vincent de Franco
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31.Jan.12 21:52

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The discussion has been moved to the right GRUNDIG Model...

  
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