B 2038
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BrandPhilips
ClassTriode
BaseO35
Filament20V @ 180mA
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation1.5 W
Grid 1 Voltage-1.3 V
Cathode Current15 mA
H-C Voltage100 V
Audio Performance
Key Features
- Miniwatt
- Detector
- L.F. amplification
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Normal | 200V | 2300 | 14000 | 33 | 6mA |
| Maximum Slope | - | 3500 | - | - | - |
Application Notes
Commonly used as an Audion detector or L.F. amplifier in series-string heater circuits.
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