Tube-number record
E9
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BrandMazda
ClassPentode
BaseFlexible / flying leads
Construction
Primary TypePentode
EnvelopeSubminiature
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage22.5 V
Grid 2 Voltage22.5 V
Grid 1 Voltage-15 V
Cathode Current0.3 mA
Audio Performance
Key Features
- Electrometric applications
- Subminiature
- Low filament consumption
- Very high insulation resistance
- Low grid current
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode | 10 V | 140 | — | 1.9 | 0.175 mA |
| Pentode | 10.5 V | 12 | 20000000 | — | 0.005 mA |
Datasheets
Datasheet: E9.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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