7552
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BrandRCA
ClassHigh-Mu Triode
BasePencil-Type Connector
Filament6.3V @ 225mA
Construction
Primary TypeCeramic-Metal Pencil
EnvelopeCeramic-Metal
Base MaterialMetal
SectionsSingle
Filament / Heater
Heater NotesUnipotential Cathode
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 warm-up time
- Sturdy coaxial-electrode structure
- Low-noise amplifier
- Severe shock and vibration resistant
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Amplifier Class A | 125V | 13500 | - | 80 | 13mA |
Application Notes
Specifically designed for use as a low-noise amplifier tube in receiver applications up to 1500 Mc under severe environmental conditions.
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