6394A
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BrandTung-Sol
ClassTwin Power Triode
BaseOctal
Filament26.5V @ 1.3mA
Construction
Primary TypeTwin Triode
EnvelopeTT46 Nonex
Base MaterialLarge Wafer Octal with Metal Sleeve
Sections2
Filament / Heater
Heater NotesMin. cathode heating time: 30 seconds
Absolute Maximum Ratings
Plate Voltage400 V
Plate Dissipation30 W
Grid 1 Voltage-300 V
Cathode Current400 mA
H-C Voltage400 V
Audio Performance
Key Features
- Zirconium coated graphite anodes
- Warp free
- Ceramic insulators
- Hard glass envelope
- Gold plated molybdenum wires
- Vibration snubbers
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Per Section | 100V | 13500 | - | 2.7 | 182.5mA |
Application Notes
Developed especially for use as a passing tube in series regulated power supplies. For high power levels, sections can be paralleled using cathode resistors to equalize current.
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