Grundig Stereo decoder

I posted this in another section, but i realized that was not the right section

Hello,

I repaired a Grundig Stereo console 390 U/S. It still have some issues with the FM because is very sensitive, but it distorts on strong stations, also the magic eye sometimes moves at the same rythm of the music this also happens in AM. Also i didn't finished the reel to reel yet, because it have some mechanical issues.

When  finish repairing the FM i want to put a stereo decoder, but don't know what stereo decoder i need. Sometimes they show up on ebay, but there are different models

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Hello.

You musst use, DECODER IV U  or the automatik Version DECODER V U

U say 75mikrosec. Deemphasis

Typ IV or V are European Versions with 50 mikrosec.  .

Knoll

• Deemphasis USA Europea (9 KB)

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Thank you. .

i just got a signal generator to align the radio.

then i will wait until a decoder shows up on ebay. 

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