Tube-number record
4BZ6
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BrandTUNG-SOL
ClassPentode
BaseMiniature 7-pin (B7G)
Filament4.2 V @ 0.45 mA
Construction
Primary TypePentode
EnvelopeGlass
Base Material7CM
Sections1
Filament / Heater
Heater Notes450 mA series heater operated television receivers; thermal characteristics controlled for warm-up cycle surges.
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation2.3 W
Grid 2 Voltage440 V
H-C Voltage200 V
Audio Performance
Key Features
- High Transconductance
- Semi-Remote Cut-off
- Miniature Type
- Coated Unipotential Cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 125 V | 8000 | 260000 | — | 14 mA |
Application Notes
Designed for service as an automatic gain controlled IF amplifier in series heater television receivers.
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