Tube-number record
12HL7
0 archive entries
12HL7 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand General Electric, construction Pentode, base Glass, socket Noval (B9A), maximum plate voltage 400 V, and maximum plate dissipation 10 W. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric
ClassPentode
BaseNoval (B9A)
Filament6.3 V @ 600 mA
Construction
Primary TypePentode
EnvelopeT-6 1/2
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesParallel or Series operation; center tap available on Pin 6
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Video Amplifier | 250 V | 21000 | 55000 | — | 25 mA |
Application Notes
Primary application is video amplifier service in color television receivers. Control grid to cathode spacing is extremely low, requiring care in testing.
Datasheets
Datasheet: 12HL7.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results