EF11
0 Tubes in archive
BrandPHILIPS
ClassPENTODE
BaseY
Filament6.3V @ 0.2mA
Construction
Primary TypePentode
EnvelopeSteel
Base MaterialMetal
SectionsSingle
Filament / Heater
Heater NotesIndirect; parallel or series supply
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation2 W
Grid 2 Voltage125 V
Grid 1 Voltage-1.3 V
Cathode Current10 mA
H-C Voltage100 V
Audio Performance
Typical THD0.85%
Key Features
- variable mutual conductance
- indirect heating
- R.F. amplifier
- I.F. amplifier
- A.F. amplifier
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| R.F. or I.F. amplifier | 100V | 1300 | 400000 | - | 2.5mA |
| R.F. or I.F. amplifier | 200V | 2200 | 2000000 | - | 5.7mA |
| R.F. or I.F. amplifier | 250V | 2200 | 2000000 | - | 6mA |
Application Notes
Pentode with variable mutual conductance for use as R.F., I.F. or A.F. amplifier.
Datasheet Viewer
Loading datasheet...
Sort by
Showing 1 to 0 of 0 results