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DL41

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ID = 778
       
Country:
Europe
Brand:
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Vacuum Pentode   Power/Output 
Identical to DL41 = MDL41
First year Dec.1948 Tube leaflet collection E.Erb Analysis by original leaflets [P12, FS4803, RM4805
First Source (s)
Sep.1948 : Daten und Schaltungen moderner ... Röhren; Philips # 3A
Predecessor Tubes DL21  
Base Rimlock base B8A
Filament Vf 2.8 Volts / If 0.05 Ampere / Direct / Battery =
Description Ab 1950 in Deutschland
Heizfaden-Mittenanschluss, daher auch Uf=1,4V und If=0,1A möglich. 
Tube prices 4 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
dl41.png
DL41: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
209.png DL41: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad 		dl41.png
DL41: Lorenz Empfänger-Röhren , 9. Auflage
Anonymous 54 Collector
More ...
Usage in Models 4= 1948 ; 1= 1949?? ; 6= 1949? ; 9= 1949 ; 1= 1950?? ; 10= 1950? ; 14= 1950 ; 2= 1951?? ; 2= 1951? ; 17= 1951 ; 1= 1952?? ; 2= 1952? ; 6= 1952 ; 2= 1953? ; 2= 1953 ; 1= 1954 ; 1= 1956??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):81

Collection of

Tor Steinnes (N)
Ulrich Fieseler (D)
Karl - Heinz Bossan (D)
Martin Steyer (D)
Tomasz Szczesniak (PL)
Georges Werts (B)
Jacob Roschy (D)
Aldo Patriarca (CH)
Reiner Scholz (D)
Alexander Hofer (A)
Karlheinz Fischer (D)
Karl-Heinz Entrich † 7.21 (D)
Michael Mischke (D)
Wolfgang Bauer (A)
Frank Cuffe (IRL)
Christian Schaufelberger (CH)
Stig Comstedt (S)
 
dl41_52rm435s.jpg

DL41
 
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