Tube-number record
EF 43
0 archive entries
BrandPhilips
ClassPentode
BaseRimlock
Filament6.3 V @ 330 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirect heating; parallel supply
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation3.75 W
Grid 2 Voltage250 V
Grid 1 Voltage-1.3 V
Cathode Current20 mA
H-C Voltage100 V
Audio Performance
Key Features
- Variable mutual conductance
- Wide-band amplifier
- Rimlock base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| R.F. or I.F. amplifier | 250 V | 6400 | 500000 | — | 15 mA |
Application Notes
R.F. pentode with variable mutual conductance for use as wide-band amplifier.
Datasheets
Datasheet: EF43.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results