triode de puissance EDD11

18,00 €
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VIntage EDD11 double triode de puissance TELEFUNKEN NOS NIB

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Première série Jul.1938 Tube leaflet collection E.Erb Analysis by original leaflets (V7)
Première source 15.Feb.1938 : Funk 1938 #4
Prédécesseurs EDD11_Prototyp  
Culot German Steel Y8A, 1938 (Codex=R)
Chauffage Vf 6.3 Volt / If 0.4 Ampère / Indirect / Specified voltage AC/DC
Description Car radio class-B push-pull twin output triode.
The EDD11 achieves at low heater power and only 7 mA zero- signal plate-current and 40 mA at max-signal a comparatively high output power of 5.5 watts.
Requires -6,3V bias and 0.1 W input power from the driver tube EBC11.
At its time it was the sole twin triode in Germany, hence it was also used for other purposes, e.g. as AF preamp. 
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