Tube Valve Mazda EM4

Country:Europe
Brand: Common type Europe tube/semicond.
Developer: Philips; Eindhoven (tubes international!); Miniwatt
Tube type: Mag. Eye, 2 ranges, 2 shadow angles Indication
Identical to EM4 = CV1434
Similar Tubes
Normally replaceable-slightly different:
EM4N ; EM5 ; WE12
Other base:
EM34
First year Jul.1939 Tube leaflet collection E.Erb Analysis by original leaflets (P9)
First Source (s)
Dec.1938 : L'Histoire Singulière du Tube Radio; G. Duperray 2009
Jul.1939 : Philips Bulletin
Predecessor Tubes EM1 AM1 EFM1
Successor Tubes 1950 EM34 EM71
Base Europe side contact P8A (Au P, 8SC) (Codex=Se)
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Description
Rote Serie

Tube testé au lampemètre de service Centrad modèle 751

(info internet)