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Tube Database (7,341 tube types · 1,270 archive entries)

Other (3,257 tube types), Pre (2,314 tube types), Power (1,030 tube types), Rectifier (740 tube types)
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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

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Tube Test—————

Application Notes

Used for operator and organizational maintenance to test electron tube condition on an arbitrary 0-120 scale.

Filters

0 tubes found

Manufacturers

Brands

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