Tube-number record
EF 8010
0 archive entries
EF 8010 is a tube type in the TubeDatabase archive (class: Remote cutoff RF-pentode). Recorded specifications: brand Telefunken, construction Pentode, socket Noval (B9A), maximum plate voltage 250 V, and maximum plate dissipation 2.5 W. The archive does not yet hold a photographed example of this type.
BrandTelefunken
ClassRemote cutoff RF-pentode
BaseNoval (B9A)
Filament6.3 V @ 300 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated, DC-AC heating
Absolute Maximum Ratings
Plate Voltage250 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Measuring Condition | 200 V | 12500 | 500000 | — | 12 mA |
| Typical Operation (170V) | 170 V | 14000 | — | — | 14 mA |
| Typical Operation (200V) | 200 V | 12500 | — | — | 10.5 mA |
Application Notes
The cathode establishes no interface even when heated without plate current for long periods. Operation with cathode and/or screen grid resistor is recommended.
Datasheets
Datasheet: EF8010.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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