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History of the manufacturer  

Pedersen, M.P; Danmark (earlier: Skovmand & Pedersen)

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Name: Pedersen, M.P; Danmark (earlier: Skovmand & Pedersen)    (DK)  
Abbreviation: pedersen
Products: Model types Tube wholesaler

Pedersen, M.P; Danmark (earlier: Skovmand & Pedersen)

Martin Peter Pedersen (1887-1979) was an active radio amateur of the early days in Denmark and got a position in Poulsen's Danish company, Det kontinentale Syndikat, just after he had graduated as an electrical engineer in 1912. After that he changed to the English arc company the Universal Radio Syndicate. Here, he met another Danish electrical engineer, Otto Skovmand. In 1914 they formed their own company called "Skovmand & Pedersen". Otto Skovmand died premature in 1919 after which Pedersen changed the name of the company to M.P. Pedersen. In the early days, Pedersens company produced various kinds of radio equipment, the most of which was based on CW and de Forests Audion, which they introduced to Denmark. At least in the 1920ies, M.P. Pedersen also produced tubes, which were labelled "M.P.". There are M.P. tubes dating in the 1930ies, however, most probably these are standard tubes only sold under the label "M.P." but produced by one of the big tube companies. M.P. Pedersen is said to have also dealt with telegraph keys for spark transmitters in the the early days. The company was active until the 1960ies at last focussing on amateur equipment.

Some models:
Country Year Name 1st Tube Notes
DK  22 4-lampe batterimodtager   4 Trioden eigener Produktion, Label "MP", Typenbezeichnung unbekannt (möglicherweise ohne). 
DK  54 Marine Radio Receiver Kuttermodtager B 312A EF41  Empfänger für die durchstimmbaren Bereiche 165 bis 475 kHz, 465 bis 1300 kHz ... 
DK  53 Seefunksender A 208 807  Sender für den Grenzwellenbereich 1,6 bis 3,5 MHz. Betriebsart nur Amplitudenmodulati... 
DK  55 Seefunkempfänger Skipsmodtager B 236 S EF9  Seefunkempfänger, Frequenzbereich 100 kHz bis 22 MHz, aufgeteilt in die Bereiche 100 bis 2... 
DK  20 Morse Key   Morse key on ebonite base. Lever, supports, and setting screws made from brass. Very long ...