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History of the manufacturer  

ČMK - Českomoravská - Kolben a. s.; Praha Vysočany

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Name: ČMK - Českomoravská - Kolben a. s.; Praha Vysočany    (CS)  
Abbreviation: cmk
Products: Model types
Summary:

ČMK - Českomoravská Kolben a.s. elektrotechnická továrna; Praha

Praha - Vysočany č.p. 19

Large mechanical engineering company, specialized to standard and electrical rail vehicles, hydroelectric power plant devices, steel buildings etc.

Large predecessor company of ČKD Praha, however in radio industry a few models are known only.

Founded: 1921
Production: 1921 - 1927
History:

gegr. 1896 (Emil Kolben), dieser Name erst von 1921. Große Firma, aber in Radiotechnik sehr wenig aktiv.
Ab 1927 Českomoravská Kolben-Daněk (ČKD, Produzent von z. B.  El. Loks, Trams, Automobilwerk Praga). Bankrott etwa 1998

This manufacturer was suggested by Josef Jonasek.


Some models:
Country Year Name 1st Tube Notes
CS  25 Lautsprecher ČMK    
CS  25 Audio Frequency Transformer   Audio Frequency transformer for coupling HF tube and LF (Audio power tube) in amateur radi... 

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