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SP13C

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ID = 10273
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to SP13C = SPTA
Similar Tubes
Other base:
  CF7 ; SP13
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)
Base British-7-Pin, old (M7A) (Codex=Nf) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 13 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Description

This is the 7pin version of the SP13.

 
Information source History of the British Radio Valve to 1940   p. 142 & 196
Babani, International Radio Tube Encyclopaedia   p. 142 & 143
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
159_13.png SP13C: Telefunken Werkstattbuch
Wolfgang Bauer
More ...
Just Qvigstad 		sp13c_techdat01.png
SP13C: Mullard Valves 1936
Peter Hoddow
Usage in Models 1= 1934 ; 2= 1935 ; 2= 1936? ; 4= 1936 ; 2= 1937 ; 3= 1938
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):14

Collection of

Collection of a member from D
Stuart Irwin (AUS)
Collection of a member from D
 
sp13c_mullard.jpg

SP13C
 
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