1U4
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BrandGeneral Electric
ClassPentode
BaseMiniature Button 7-Pin
Construction
Primary TypeSharp-cutoff pentode
EnvelopeT-5 1/2, Glass
Base MaterialMiniature Button 7-Pin
Sections1
Filament / Heater
MaterialCoated Filament
Absolute Maximum Ratings
Plate Voltage110 V
Grid 2 Voltage110 V
Cathode Current6 mA
Audio Performance
Typical THD5%
Key Features
- Miniature
- Filamentary
- Sharp-cutoff
- Battery-operated receivers
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 90V | 900 | 1000000 | - | 1.6mA |
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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