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1A3

Information - Help 
ID = 4088
       
Country:
United States of America (USA)
Brand:
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Signal Diode - one single system   Detector 
Identical to 1A3 = DA90
Similar Tubes
Other class quality (otherwise equal):
  CV753
First Source (s)
09.May.1942 : Electron Tube Registration List 294

Base Miniatur-7-Pin-Base B7G, USA 1940 (Codex=Za)
Filament Vf 1.4 Volts / If 0.15 Ampere / Indirect / Battery =
Description Used as detector tube in portable FM receivers and in portable high-frequency measuring equipment. Heater volts ac/dc 1.4, amperes 0.15. 
Tube prices 4 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
  1a3.png
  1A3: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
1a3_1.jpg
1A3: EP
Egon Penker

 
1a3_sock.png
1A3: Telefunken Taschenbuch 1971
Anonymous 15 Collector

 
1a3_1.png
1A3: Manufacturer's Literature
Emilio Ciardiello


Usage in Models 1= 1943?? ; 1= 1944 ; 1= 1947? ; 2= 1947 ; 1= 1949?? ; 1= 1949 ; 1= 1952 ; 1= 1953? ; 1= 1953 ; 3= 1954?? ; 1= 1960?? ; 1= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):15


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