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History of the manufacturer  

Unitra ELTRA; Zaklady Radiowe; Bydgoszcz

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Name: Unitra ELTRA; Zaklady Radiowe; Bydgoszcz    (PL)  
Abbreviation: unitraeltr
Products: Model types Others
Summary:

Company Zaklady Radiowe Eltra was found by engineer Mr. Jan Ciszewsky. The company was one of the first Poland electrotechnic company.

Founded: 1923
History:
The company produced on the beginning some switches and commutators. After WW2 nationalization the company was renamed as Bydgoska Fabryka Artykulow Elektrotechnicznych (Plant for electrotechnic material in Bydgoszcz). In 50s the company produced some shassis for tube radios and push button band switches. The basic change in history of company was production of first Polish miniaturized and tranzistorized portable radio model Eltra MOT-59. Later many kind of portable radio models were the company`s general production portfolio, for example Koliber, Sylwia, Kama, Mariola, Jowita, Julia stereo, or some tuner towers for Unitra. Company usually chose woman names for its models. During 70s and 80s the company was a part of Zjednoczenia Przemyslu Elektronicznego Unitra (United electonic industry - Unitra). Later company produced radio model family Lena and Ala. In 2004 company merger with Elda Szczecinek Elektrotechnika S.A. under name Elda-Eltra Elektrotechnika S.A. The company produce beside radio models some electro wiring and communication material for buildings.

This manufacturer was suggested by Gabriel Toth.


Some models:
Country Year Name 1st Tube Notes
PL  83 Alicja R-603    
PL  73 Magda MOT712 BFP214  LW 150 - 285 kHz MW 525 - 1605 kHz  
PL  73 Monika MOT722   Ferritantenne, KW-Lupe. 
PL  85 Zosia R-614 BF195  UKW-Stereo-Wiedergabe nur über beigepackten Kopfhörer. 
PL  69 Dominika MOT 663-1   2x TG50. 
PL  83 Alicja R202    
PL  85 Donald    
PL  88 Halina R-802 BF195  Der Halina R802 ist ein kleiner Reiseempfänger mit 7 Bereichen für KW (13m ... 
PL  70 Dominika MOT 663-2   2x TG50. 
PL  64 Koliber 3 MOT633 [early version] TG40  Es ist die erste Version des Koliber 3. Das Gehäuse gleicht noch dem Koliber 2 
PL  60 Koliber MOT601 OC44  2× OC72. 
PL  63 Koliber 2 MOT-611 OC170  Koliber 2 ist ein Taschenempfänger, Stromversorgung 4x R6, Endstufe ohne Ausgangst... 

[rmxhdet-en]

Further details for this manufacturer by the members (rmfiorg):

tbn_unitra_eltra.jpg
Thanks for technical assistance Első Zalai Rádiómúzeum Alapítvány ( radio-muzeum.hu), First Zala County Radio Museum Foundation, Hungary, Zalaegerszeg.tbn_pl_unitraeltr_minor_logo.jpg

  
rmXorg