6SJ7
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BrandRCA
ClassR-F Amplifier Pentode
BaseOctal
Filament6.3V @ 300mA
Construction
Primary TypePentode
EnvelopeMetal
Base MaterialSmall wafer Octal 8-pin
SectionsSingle
Filament / Heater
Heater NotesA.C. or D.C.
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation2.5 W
Grid 2 Voltage300 V
H-C Voltage90 V
Audio Performance
Key Features
- Single-ended construction
- Sharp cut-off characteristic
- No top cap
- Internal shielding
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier (100V) | 100V | 1575 | 700000 | 1100 | 2.9mA |
| Class A Amplifier (250V) | 250V | 1650 | 1500000 | 2500 | 3mA |
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