Tube-number record
12BH7
0 archive entries
12BH7 is a tube type in the TubeDatabase archive (class: A.F. Double Triode). Recorded specifications: brand Ei-RC, construction Dual triode, socket Noval (B9A), maximum plate voltage 450 V, and maximum plate dissipation 3.5 W. The archive does not yet hold a photographed example of this type.
BrandEi-RC
ClassA.F. Double Triode
BaseNoval (B9A)
Filament6.3 V @ 600 mA
Construction
Primary TypeDual triode
Envelopemax. 22.2 mm x 67.3 mm
Sections2
Filament / Heater
Heater NotesIndirect heating by AC or DC, serial or parallel supply.
Absolute Maximum Ratings
Plate Voltage450 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 amplifier | 250 V | 3100 | 5300 | 16.5 | 11.5 mA |
| Vertical deflection amplifier | 350 V | 3100 | — | 16.5 | 16 mA |
Application Notes
Commonly used as an AF amplifier or vertical deflection amplifier in television receivers.
Datasheets
Datasheet: 12BH7.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results