Koliber 2 MOT 611 radio receiver

The Koliber 2 (Eng.: *humming-bird*) is one of the three versions of the Koliber travel radio produced between 1962 and 1966 in Bydgoszcz. The Kolibers are a development of the Eltra MOT-59 – the first portable radio manufactured by Eltra. The Koliber 2 is a superheterodyne, improved from the original version through the use of seven transistors and a germanium diode on a printed circuit board. The monophonic Koliber 2 was equipped with five tuned circuits, which allowed reception of medium and long wave bands. Thanks to its small dimensions it fulfilled the role of a portable, battery-powered radio (with the possibility of connecting it to the mains, but only using a special converter). The Koliber 2 has a built-in ferrite antenna and a magnetic electric speaker. Manufacturer: Zakłady Wyrobów Elektrotechnicznych Eltra, 1964 Inv. no.: MIM253/V-41 Model prepared on the basis of photogrammetric measurements Licence: CC BY-NC-SA