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ID = 13615
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 very rare. ***
Identical to 4609 = 4019A

Base UV-Base (4 Pins+Bayonet, USA 1914 WE) (Codex=Eo)
Was used by Telephony
Filament Vf 4.2 Volts / If 0.25 Ampere / Direct

Va = 130V, Ia = 5mA, Vg = -8V, mu = 11, S = 2,3mA/V AF output amplifier. Telephone repeater tube designed for DC series or parallel operation

Dimensions (WHD)
incl. pins / tip
52 x 106 x mm / 2.05 x 4.17 x inch
Tube prices 2 Tube prices (visible for members only)
Information source -- Original-techn. papers.   
- - Manufacturers Literature   
Babani, International Radio Tube Encyclopaedia
Universal Vade-Mecum, Electron Valves and Semiconductor Devices

uv_sockel_1.png 4609: KoBi
Wolfgang Holtmann

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Just Qvigstad
4609: Röhren-Handbuch 1995 Franzis-Verlag
Heinz Höger

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