Tube-number record
TV-7/U, TV-7A/U, TV-7B/U, TV-7D/U
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BrandDepartment of the Army
ClassElectron Tube Test Set
BaseMiniature 7-pin (B7G)
Filament105 V @ — mA
Construction
Primary TypeOther / special
EnvelopePortable
SectionsMultiple Switch Positions (A thru E/F)
Filament / Heater
Heater NotesOperating power AC 50 to 1000 Hz single phase
Absolute Maximum Ratings
Plate Voltage300 V
Audio Performance
Key Features
- Dynamic mutual conductance measurement
- Portable design
- Wide filament voltage range
- Support for miniature and sub-miniature tubes via adapters
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Tube Test | — | — | — | — | — |
Application Notes
Used for operator and organizational maintenance to test electron tube condition on an arbitrary 0-120 scale.
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