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DL91

Information - Help 
ID = 3018
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Vacuum Pentode   Power/Output 
Identical to DL91 = 1S4
First year 1948 Tube leaflet collection E.Erb Kat438

Base Miniatur-7-Pin-Base B7G, USA 1940
Filament Vf 1.4 Volts / If 0.1 Ampere / Direct
Description Keine sicheren Grundlagen für Erstserie, in Codex 1948 ohne Daten geführt. 
Tube prices 3 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   
  dl91.png
  DL91: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
dl91_a.jpg
DL91: scc
Christian Schaufelberger

 
dl91.png
DL91: Lorenz Empfänger-Röhren , 9. Auflage
Anonymous 54 Collector

 
dl91_techdat01.png
DL91: SEL Handbuch 1964
Peter Hoddow


Usage in Models 1= 1950 ; 2= 1951 ; 2= 1953? ; 1= 1955?? ; 1= 1955 ; 1= 1956

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):8


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