Tube-number record
12DW5
0 archive entries
12DW5 is a tube type in the TubeDatabase archive (class: BEAM POWER PENTODE). Recorded specifications: brand TUNG-SOL, year 1957, construction Beam tetrode / beam power, base Small Button 9-pin, socket Noval (B9A), maximum plate voltage 330 V, and maximum plate dissipation 11 W. The archive does not yet hold a photographed example of this type.
BrandTUNG-SOL
ClassBEAM POWER PENTODE
BaseNoval (B9A)
Filament12.6 V @ 0.6 mA
Construction
Primary TypeBeam tetrode / beam power
EnvelopeT-6 1/2 Glass
Base MaterialSmall Button 9-pin
SectionsSingle
Filament / Heater
Heater NotesControlled heater warm-up cycle; AC or DC
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation11 W
Grid 2 Voltage220 V
Grid 1 Voltage250 V
Cathode Current65 mA
H-C Voltage200 V
Audio Performance
Key Features
- Controlled heater warm-up cycle
- High zero bias plate current
- Designed for 110 degree deflection systems
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode Connected | 200 V | 5500 | 15000 | — | 55 mA |
| Triode Connected | 150 V | — | — | 4.3 | — |
Application Notes
The 12DW5 is a beam power pentode in the 9-pin miniature construction designed primarily for vertical deflection amplifier service in television receivers employing 110° deflection systems. It is designed to operate at relatively low B supply voltages.
0 results