I recently purchased a Graetz Musica 4r 217 from Germany. It arrived ok and everything seemed to be intact. I did find L37 MW coil detached from the chassis, uncoiled and leads broken from connection points. I rewound the coil wire and glued it to stay intact. I can glue the coil back into the chassis no issue. What I need to know is where the various leads go - what terminals do I solder to? The schematic to me doesn't indicate clearly and there are at least 4 or 5 leads coming off the coil (it appears there are in fact two coils or two sets of coils on the core.). I can use an ohmmeter to chase leads for continuity. Can anyone provide a visual to guide me on this? I have some pictures and details but not for all leads.
Comments
Hello Bob!
L37 coil looks like AM input band filter.
You can find good pictures from the chassis:
https://www.radiomuseum.org/r/graetz_musica_4r217.html
I would try the correct soldering with signal generator or weak AM station (LOW or HIGH audio signal)
Good luck to repair!
TJ
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