Tube-number record
EC91
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BrandPHILIPS
ClassGrounded Grid Triode
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 300 mA
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirect by A.C. or D.C.; Series or parallel supply
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2.5 W
Grid 1 Voltage-100 V
Cathode Current15 mA
H-C Voltage150 V
Audio Performance
Key Features
- Grounded grid triode
- For ultra short wave purposes
- Up to 250 Mc/s
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Grounded Grid | 250 V | 8500 | 12000 | 100 | 10 mA |
Application Notes
Designed for ultra short wave applications up to 250 MHz using grounded grid configuration.
Datasheets
Datasheet: EC91.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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