Front view of the receiver. Is made with a classic components layout as many receivers of the 50'. On the left the autotransformer, behind the tubes and the middle frequencies and on the right the tuning assembly .

This Telefunken Mignonnette is one of the first portable radio, even always a 200V needed.  The tuning group is a variable impedace type. In this case during the turn of the tuning knob the impedance of the antenna resonant filter changing, in order to tuning the stations. The big variable double capacitor in not required. This receiver works only in medium waves, as many cheap receivers of this years.

Bottom view of the receiver, you can see the yellow paper capacitors, the resistances assembly (the grey blocks) and the tuning scale lamp. In this receivers there aren't many components, due to an easy circuit configuration.
 

Detailed view of the damaged ballas resistors.. In this type of  receivers with a little cabinet dimension the heating of the power supply section was very difficult. This often produced an overheating of some components.

The first AF tube in this receiver was shielded very well, because with the AF and MF tubes so close some noise can be created.