Tube-number record
LZ319
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BrandMarconi Osram
ClassTriode Pentode
BaseNoval (B9A)
Filament9 V @ 0.3 mA
Construction
Primary TypeIndirectly heated
EnvelopeTubular
SectionsTriode-Pentode
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation1.7 W
Grid 2 Voltage200 V
Cathode Current14 mA
H-C Voltage150 V
Audio Performance
Key Features
- High slope R.F. pentode
- Low-mu triode
- Frequency changer
- Suitable for Band III television
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 170 V | 6000 | — | — | 10 mA |
| Triode | 100 V | 5000 | 4000 | 20 | 14 mA |
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