TubeDatabase
  • Tubes
  • Testers
  • Companies
  • Submit
  • About

Tube Database (1,270 tubes)

Other (7066), Pre (189), Power (67), Rectifier (19)
DisclaimerSubmit a tube

D 7-221 GY

0 Tubes in archive

BrandValvo
ClassOscilloscope Tube
BaseJEDEC B12-246
Filament6.3V @ 100mA

Construction

Primary TypeEinstrahlig (Single beam)
EnvelopeGlass, rectangular
Sections1

Filament / Heater

Heater NotesSparheizkatode (Low-power heater)

Absolute Maximum Ratings

Plate Voltage2200 V
Grid 2 Voltage2200 V
Grid 1 Voltage-200 V
H-C Voltage100 V

Audio Performance

Key Features
  • Rectangular flat screen
  • 7 cm diagonal
  • Built-in rotation correction coil
  • Electrostatic deflection
  • Electrostatic focus

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Typical Operation1000V---0.01mA

Application Notes

Designed for low-cost oscilloscopes and display units.

Datasheet Viewer

Loading datasheet...

Filters

0 tubes found

Manufacturers

Brands

    Showing 1 to 0 of 0 results