Tube-number record
12J7GT
0 archive entries
12J7GT is a tube type in the TubeDatabase archive (class: Pentode Detector Amplifier). Recorded specifications: brand Arcturus, construction Pentode, and socket Octal. The archive does not yet hold a photographed example of this type.
BrandArcturus
ClassPentode Detector Amplifier
BaseOctal
Filament12.5 V @ 150 mA
Construction
Primary TypePentode
EnvelopeGT
SectionsSingle
Filament / Heater
Heater NotesDesigned for series heater operation in AC-DC receivers
Absolute Maximum Ratings
Grid 2 Voltage125 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 100 V | 1185 | 1000000 | 1185 | 2 mA |
| Typical Operation | 250 V | 1225 | 1500000 | 1500 | 2.1 mA |
Application Notes
Type 12J7GT is designed primarily for series heater operation in AC-DC receivers. Only half the heater power for the entire receiver is required compared to designs using 0.3 ampere types.
Datasheets
Datasheet: 12J7GT.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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