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EF15 Info
           
  Tube type:  PENTODE   RF/IF-Stage   Controlling (mu) 
Tube ID = 328
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Identical to EF15
Similar Tubes EF175 (other base)   UF15 (Heater different)  
First Series   1950 Tube leaflet collection E.Erb Analysis by original leaflets
Successor Tubes EF175  

Base German Steel Y8A, 1938
Was used by Radio/TV-reception etc.
Filament -: Indirect / -: Parallel, (AC/DC) / If: 0.45 Ampere / Vf 6.3 Volts /
Description Ua: 250V; Ug2: 100V; Ug1: -2V; Rk: 130 Ohm; Ia: 12 mA; Ig2: 3 mA; S: 6 mA/V; Ri: 500 kOhm 
Text in other languages (may differ)
Tube prices 1 Tube prices (visible for members only)
Literature Röhren-Taschen-Tabelle 14.A, (Franzis RTT)   

  ef15.gif
  Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
ef15.jpg
MS
Martin Steyer

 
st35.png
RTT 1974 (Franzis) 13. Auflage
Martin Renz

 
ef15_spec.png
Hönger, Röhrentaschenbuch, 1952
Anonymous 15 Collector

Usage in Models   21= 1950 ; 1= 1951? ; 17= 1951 ; 2= 1952 ; 1= 1956? ; 1= 1956 ;
Number of Models with this tube   43
No further Information for

EF15    

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