Tube-number record
6394A
0 archive entries
6394A is a tube type in the TubeDatabase archive (class: Twin Power Triode). Recorded specifications: brand Tung-Sol, year 1958, construction Dual triode, base Large Wafer Octal with Metal Sleeve, socket Octal, maximum plate voltage 400 V, and maximum plate dissipation 30 W. The archive does not yet hold a photographed example of this type.
BrandTung-Sol
ClassTwin Power Triode
BaseOctal
Filament26.5 V @ 1.3 mA
Construction
Primary TypeDual triode
EnvelopeTT46 Nonex
Base MaterialLarge Wafer Octal with Metal Sleeve
Sections2
Filament / Heater
Heater NotesMin. cathode heating time: 30 seconds
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Per Section | 100 V | 13500 | — | 2.7 | 182.5 mA |
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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