Tube-number record
14R7
0 archive entries
14R7 is a tube type in the TubeDatabase archive (class: Duplex-Diode Pentode). Recorded specifications: brand General Electric, construction Multi-section, socket Loctal, maximum plate voltage 250 V, and maximum plate dissipation 2 W. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric
ClassDuplex-Diode Pentode
BaseLoctal
Filament12.6 V @ 150 mA
Construction
Primary TypeMulti-section
EnvelopeT-9 Glass
SectionsDuplex-Diode, Semi-remote-cutoff pentode
Filament / Heater
Heater NotesCoated Unipotential Cathode
Absolute Maximum Ratings
Plate Voltage250 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier | 100 V | 2000 | 350000 | — | 5.5 mA |
| Class A1 Amplifier | 250 V | 2000 | 1000000 | — | 5.7 mA |
Datasheets
Datasheet: 14R7.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results