Tube-number record
ECC91
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BrandPHILIPS
ClassDouble Triode
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 0.45 mA
Construction
Primary TypeDual triode
EnvelopeGlass
Sections2
Filament / Heater
Heater NotesIndirect by A.C. or D.C., parallel supply
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation1.5 W
Grid 1 Voltage-40 V
Cathode Current25 mA
H-C Voltage100 V
Audio Performance
Power Output3.5 W
Key Features
- R.F. amplifier
- Oscillator
- Class C push-pull operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical characteristics (per system) | 100 V | 5300 | 7100 | 38 | 8.5 mA |
| H.F. class C telegraphy push-pull at 80 Mc/s | 150 V | — | — | — | 30 mA |
Datasheets
Datasheet: ECC91.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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