Tube-number record
ECF 12
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ECF 12 is a tube type in the TubeDatabase archive (class: Triode-Pentode). Recorded specifications: construction Other / special, base Metal, socket Special / none, and maximum plate voltage 250 V. The archive does not yet hold a photographed example of this type.
ClassTriode-Pentode
BaseSpecial / none
Filament6.3 V @ 300 mA
Construction
Primary TypeOther / special
EnvelopeSteel
Base MaterialMetal
SectionsTriode, Pentode
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode (static) | 100 V | 3000 | — | 16.67 | — |
| Pentode | 250 V | 2000 | — | — | 5 mA |
Application Notes
Specifically designed for frequency-modulated transmitter reception as an HF pre-stage and super-regenerative detector.
Datasheets
Datasheet: ECF12.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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