Siemens E566

The Siemens 566 is a professional German radio receiver from 1957. It covers from 14 kHz up to 30.3 MHz in 12 segments, selectable through a keyboard to the left of the front panel.
It has double or triple conversion, depending on the band, and it receives CW and AM. SSB reception is possible on the CW position, by adjusting the RF gain control.
It has a magic eye as a signal strength indicator, and a dial resolution of 1 kHz thanks to a band spread system that is controlled through a second tuning knob. The band spread arrangement allows 1 kHz resolution in segments of 100 kHz each. It has a calibrator that allows the operator to zero bat the receiver accurately at the beginning of each 100 kHz segment.
It is big and heavy (about 35 kg), and it is a joy to use. The sound comes out through a small speaker on the upper right part of the front panel, and the quality is amazing given the size of the speaker.
This receiver was widely used by many countries in merchant and navy ships, as well as in ground stations. It has a well deserved reputation for excellent sensitivity, selectivity and stability, and that explains its longevity. It was still in use in many ships well into the 1970s.
Mine came from Germany, and didn't work. It went through a long restoration process, and it works extremely well now.
I very much like the colourful dial, which gave this receiver its nickname of "rainbow" or "peacock tail". Beauty is indeed a very subjective thing, but many consider the E566 as one of the most beautiful professional radios ever made.
I was playing with it last night and casually listening here and there, especially on the 31m band and on medium wave. Hope you will enjoy this.