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

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Tube-number record

WL-7290

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BrandWestinghouse
ClassVidicon Camera Tube
BaseSubminiature
Filament6.3 V @ 600 mA

Construction

Primary TypeDisplay / CRT
EnvelopeT-8
SectionsSingle

Filament / Heater

Heater NotesAC or DC

Absolute Maximum Ratings

Plate Voltage25 V
Grid 2 Voltage350 V
Grid 1 Voltage-125 V
H-C Voltage125 V

Audio Performance

Key Features
  • Slow scan applications
  • Low dark current
  • High resolution
  • Long storage time
  • High sensitivity

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Slow Scan17.5 V———0.0001 mA

Application Notes

The WL-7290 with slow scan is useful for transmitting high resolution information over conventional audio circuits as system bandwidth requirements are reduced.

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