Tube-number record
6K4П-EB
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BrandUSSR
ClassPentode
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 300 mA
Construction
Primary TypePentode
EnvelopeGlass
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation3 W
Grid 2 Voltage125 V
Cathode Current20 mA
H-C Voltage90 V
Audio Performance
Key Features
- Extended characteristic
- High-frequency
- High-reliability (EV version)
- Vibration resistant
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Amplifier | 250 V | 4400 | 450000 | — | 10 mA |
Application Notes
Designed for high-frequency voltage amplification with extended characteristic (variable-mu).
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