Information from Mr. Krszystof Imielsky, he is member of CS Historical Radioclub. Gdanskie Zaklady Radiowe - Gezar was founded on 1st February 1957 in some old barracks. As a first its product was the channel switch for model Belweder of company Warszawskie Zaklady Telewizyjne. Next year it began the production of complete model. During 60s company produced some professional radio lines for TV transmission between different TV centers. Since 1965 began production of standardized blocks for all Polish TV sets. In 1970 company renamed to Gdanskie Zaklady Elektroniczne Unimor. In 1974 began the production of new tube/transistor generation of TV sets, for example first portable (however with AC supply) TV set Neptun 221, in second half of 70s the complete transistorized sets. First Secam color TV set (Neptun 500 series) was produced in 1981, PAL-Secam type since 1985. On the free market company was successful at the beginning. In 1996 company was splitted to different divisions. The TV set production division was closed in 1998. The last produced TV set model was Sjesta. In the same year made independent company Radio-Com, producer of military electronic systems.