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EY624

Information - Help 
ID = 12725
       
Country:
France
Brand: Mazda (tubes), Mazda-Belvu, Compagnie des Lampes; Paris
Developer: Westinghouse El. & Mfg. Co. - see also Canadian W. 
Tube type:  Screen-grid Tetrode   Universal 
Identical to EY624 = 24 = UY224 = C324
Similar Tubes
Normally replaceable-slightly different:
  24A
Base UY-Base, 5 Pins (USA, April 1927) (Codex=Ha) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 2.5 Volts / If 1.75 Ampere / Indirect / Specified voltage AC/DC
Description

Schirmgitter: 90V und 1,7 mA; S = 1,05 mA/V; Ri= 600 kOhm

 
Information source Taschenbuch zum Röhren-Codex 1948/49   Universal Vademecum 1960
-- Collector info (Sammler)   
ey624_so.png EY624: ARRL Handbook 1972
Anonymous 10 Collector

Just Qvigstad 		valvola_ey624_metal_mazda_2.png
EY624: j.tavares
Jorge Tavares
Usage in Models 1= 1932?? ; 1= 1932 ; 1= 1933??
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3

Collection of

Jacky Parmentier (F)
Pedro Prieto-Castro (E)
Wolfgang Eckardt (D)
Marc Goeritz (D)
 
mazda_ey624.jpg

EY624
 
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