Antique radios, Old Time Radios
VR28
| Base |
Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Er)
Top contact with a cap.
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| Was used by |
Military and/or Government |
| Filament |
Vf 2 Volts / If 0.2 Ampere / Direct / Battery = |
| Description |
This is a variable mu tube.
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| Information source |
Babani, International Radio Tube Encyclopaedia p. 156 & 157
-- Original-techn. papers.
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
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VR28: Manufacturer's Literature
Emilio Ciardiello
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Just Qvigstad
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Collection of
Collection of a member from D |
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