Tube-number record
TV-7/U, TV-7A/U, TV-7B/U, TV-7D/U
0 archive entries
TV-7/U, TV-7A/U, TV-7B/U, TV-7D/U is a tube type in the TubeDatabase archive (class: Electron Tube Test Set). Recorded specifications: brand Department of the Army, construction Other / special, socket Miniature 7-pin (B7G), and maximum plate voltage 300 V. The archive does not yet hold a photographed example of this type.
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
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.
0 results