I have come across an older magnavox console that was originally a mono unit, but was converted to a stereo unit with a separate matching speaker box. It is in somewhat working condition. There is a tag inside that says it was converted to a stereo by a magnavox authorized dealer. The wood is in rough condition, but the components seem strong. I found some numbers on the unit, but can't find any information about it. The numbers are: JC17 8, 6930c3 3, Serial # 3230894, Style# c307-35. Of the information I have been able to find I think the additional speaker is called a Magnasonic, but I'm not 100% sure. I'd love a little help determining an age, or point me in the right direction on where to find some info. How much is too much to spend on a piece like this?
I have 4 Magnavox consoles in varying ages, and have never had much luck finding a date on them, or a model name, etc.

