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BrandNational Union Radio Corporation
ClassLow Microphonic Twin Triode Amplifier
BaseOctal
Filament6.3V @ 0.3mA
Construction
Primary TypeTwin Triode
EnvelopeT-9
Base MaterialIntermediate Shell octal
Sections2
Filament / Heater
Heater NotesA.C. or D.C.
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation1 W
Audio Performance
Key Features
- Low microphonic
- Coated Unipotential cathode
- Ruggedized
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier Per Unit | 250V | 1600 | 44000 | 70 | 2.3mA |
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