12JN6
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BrandTung-Sol
ClassBeam Pentode
Base12-pin Compactron
Filament12.6V @ 600mA
Construction
Primary TypeBeam Pentode
EnvelopeT-12
Base MaterialGlass
SectionsSingle
Filament / Heater
Warm-up Time11s
Heater NotesCoated Unipotential Cathode
Absolute Maximum Ratings
Plate Voltage770 V
Plate Dissipation17.5 W
Grid 2 Voltage220 V
Grid 1 Voltage-330 V
Cathode Current175 mA
H-C Voltage200 V
Audio Performance
Key Features
- Compactron construction
- Beam-power pentode
- Designed for horizontal-deflection amplifier in TV
- Separate connection for beam plates (grid 3) to minimize snivets
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 250V | 7300 | 18000 | 4.4 | 65mA |
| Zero Bias High Current Point | 60V | - | - | - | 345mA |
Application Notes
In stages operating with grid-leak bias, an adequate cathode-bias resistor or other suitable means is required to protect the tube in the absence of excitation.
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