Tube valve SER Ericsson AL1
Tube valve SER Ericsson AL1
Country:Europe
Brand: Common type Europe tube/semicond.
Tube type: Vacuum Pentode Power/Output
Identical to AL1 = TL1 = TAL1 = RAL1 = VAL1 = UAL1 = 9PW4L = WE35 = 4A23_Ultron
Similar Tubes
Normally replaceable-slightly different:
A4S2 ; VP1
Other class quality (otherwise equal):
E3aIII
Other base:
E443H ; L496D ; PP4101 ; RES964 ; RTP4 ; WE30
First year Mar.1935 Tube leaflet collection E.Erb Apparate erst 1935 ist wohl korrekt.
First Source (s)
Mar.1935 : Philips Bulletin
15.Jul.1935 : Funk
Predecessor Tubes E443H RES964 L496D PP4101 RTP4
Successor Tubes AL4
Base Europe side contact P8A (Au P, 8SC) (Codex=Soo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1.1 Ampere / Direct / Specified voltage AC/DC
Tube testé au lampemètre de service Centrad modèle 751
(info internet)