Tube-number record
5812
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BrandHytron
ClassBeam Pentode
BaseMiniature 7-pin (B7G)
Construction
Primary TypeBeam tetrode / beam power
EnvelopeMiniature T-5-1/2
Sections1
Filament / Heater
Materialoxide-coated
Warm-up Time2s
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation10 W
Grid 2 Voltage250 V
Grid 1 Voltage-150 V
Cathode Current60 mA
Audio Performance
Power Output7 W
Key Features
- Instant-heating
- 10-watt
- Miniature
- No neutralization required up to 165 MHz
- Center-tapped filament
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Average Static Characteristics | 250 V | 4800 | 63000 | 5.5 | 40 mA |
| Class C Telegraph (160 MHz) | 300 V | — | — | — | 55 mA |
Application Notes
Designed for portable and mobile r-f and a-f service. In standby, instant-heating filament can be turned off to save battery drain. Plate supply must be switched off before or simultaneously with the filament.
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