radiomuseum.org

СО-257so-257

Information - Help 
ID = 10261
       
Country:
Soviet Union
Brand: Common type USSR (SU) tube/semicond.
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to СО-257
Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ur) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.25 Ampere / Direct / Battery =
Tube prices 3 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
Röhren-Vademecum; P.H. Brans; Antwerpen
so257_sock.png СО-257: Grundig Rö-Tabu, zum M1, Band 3, 1948
Anonymous 15 Collector

Just Qvigstad 		so257_spec.png
СО-257: Grundig Rö-Tabu, zum M1, Band 3, 1948
Anonymous 15 Collector
More ...
Usage in Models 1= 1943 ; 3= 1944 ; 1= 1948
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):5

Collection of

Tomasz Szczesniak (PL)
Sigurd Hauschild (D)
Danko Tkalec (HR)
Valery Gromov (RUS)
Wolfgang Lill (D)
Helmut Weigl (D)
Wolfgang Leifer (D)
Reinhard Riek (D)
 
_so257.jpeg

СО-257
 
You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  
Data Compliance More Information