Antique radios, Old Time Radios
4609
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Country:
Netherlands
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| Identical to |
4609
= 4019A
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| Base |
UV-Base (4 Pins+Bayonet, USA 1914 WE) (Codex=Eo)
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| Was used by |
Telephony |
| Filament |
Vf 4.2 Volts / If 0.25 Ampere / Direct |
| Description |
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
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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)
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| Information source |
-- Original-techn. papers.
- - Manufacturers Literature
Babani, International Radio Tube Encyclopaedia
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
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4609: KoBi
Wolfgang Holtmann
More ...
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Just Qvigstad
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4609: Röhren-Handbuch 1995 Franzis-Verlag
Heinz Höger
More ...
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Collection of
Collection of a member from D |
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