Tube-number record
4067
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BrandPHILIPS
ClassSubminiature Electrometer Pentode
BaseSubminiature
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage45 V
Grid 2 Voltage45 V
Audio Performance
Key Features
- Directly heated
- Electrometer tube
- Subminiature design
- Low grid current
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Characteristics | 5 V | 75 | — | 9.7 | 0.05 mA |
| Operating Characteristics | 120 V | — | 20000000 | — | 0.0005 mA |
Application Notes
The tube is to be used in complete darkness only (light tight screening). The filament voltage must be applied before the anode voltage to avoid excessive drift. Soldered connections must be at least 5 mm from the seal, and lead bending at least 1.5 mm from the seal.
Datasheets
Datasheet: 4067.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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