Tube-number record
EL 3B
0 archive entries
EL 3B is a tube type in the TubeDatabase archive (class: Half-wave Rectifier). Recorded specifications: brand Electrons, Incorporated, year 1953, construction Rectifier, base Metal, socket 4-pin, and maximum plate voltage 920 V. The archive does not yet hold a photographed example of this type.
BrandElectrons, Incorporated
ClassHalf-wave Rectifier
Base4-pin
Construction
Primary TypeRectifier
Rectifier TypeHalf-wave
EnvelopeGlass
Base MaterialMetal
Sections1
Filament / Heater
MaterialTantalum Anode (implied oxide or similar for gas tube)
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Half-wave Rectifier | 9 V | — | — | — | 2500 mA |
Application Notes
The filament must be lit before drawing d-c. load current. The anode is designed to operate at red heat when under full load. All values are for returns to the filament center tap.
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