Tube-number record
1U4
0 archive entries
1U4 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand General Electric, year 1957, construction Pentode, base Miniature Button 7-Pin, socket Miniature 7-pin (B7G), and maximum plate voltage 110 V. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric
ClassPentode
BaseMiniature 7-pin (B7G)
Construction
Primary TypePentode
EnvelopeT-5 1/2, Glass
Base MaterialMiniature Button 7-Pin
Sections1
Filament / Heater
MaterialCoated Filament
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 90 V | 900 | 1000000 | — | 1.6 mA |
Application Notes
The 1U4 is intended for radio-frequency or intermediate-frequency amplifier use in battery-operated receivers. All voltages are referred to the negative terminal of the filament.
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