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StR90/40

Information - Help 
ID = 19714
       
Country:
Germany
Brand: Werk für Fernmeldewesen (OSW, HF, WF) Berlin, VEB, RFT (Ostd.)
Tube type:  Voltage Regulator, single 
Identical to StR90/40 = 90C1

Base Miniatur-7-Pin-Base B7G, USA 1940
Filament No heater
Description Die vom VEB Werk für Fernmeldewesen (WF) hergestellten Spannungsstabilisatoren wurden 1955 umbenannt. Aus der Buchstabengruppe STV wurde StR. 
Tube prices 3 Tube prices (visible for members only)
Information source
  typ.schaltungstr90-40.png
  StR90/40: Schaltplan Oszi EO 1/71a von EPW Thalheim
Hans-Peter Fritzwanker
 
d_str90_40_01_2015.jpg
StR90/40: eigene Fotografie
Jürgen Tiedmann

 
str9040_sock.png
StR90/40: RFT-Spezialröhren 1965
Anonymous 15 Collector

 
str9040_spec2.png
StR90/40: Gasentladungsröhren, RFT, 1967
Anonymous 15 Collector


from Just Qvigstad

Usage in Models 1= 1954 ; 2= 1955 ; 1= 1958? ; 1= 1959? ; 2= 1960?? ; 1= 1961? ; 2= 1962? ; 1= 1962 ; 1= 1963 ; 2= 1964 ; 1= 1965? ; 1= 1967 ; 1= 1970??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):17


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