Tube-number record
8727
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BrandRCA
ClassHigh-Mu Triode
BaseSpecial / none
Filament6.3 V @ 225 mA
Construction
Primary TypeTriode
EnvelopeCeramic Metal
SectionsSingle
Filament / Heater
Warm-up Time5s
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2.5 W
Grid 1 Voltage-50 V
Cathode Current25 mA
H-C Voltage50 V
Audio Performance
Key Features
- Fast Warmup Time
- Ceramic Metal
- High-Mu Triode
- Pre-Tinned Heater Pins
- Sturdy Coaxial-Electrode Structure
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Static Characteristics | 125 V | 16000 | 4375 | 70 | 14 mA |
Application Notes
Pencil tube designed for RF power amplifier and oscillator service up to 5 GHz and altitudes up to 100,000 feet.
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