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

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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D13-21 vacuum tube outline illustration

Tube-number record

D13-21

0 archive entries

D13-21 is a tube type in the TubeDatabase archive (class: Oscilloscope Tube). Recorded specifications: brand PHILIPS, construction Display / CRT, socket Diheptal, maximum plate voltage 12000 V, and maximum plate dissipation 6 W. The archive does not yet hold a photographed example of this type.

BrandPHILIPS
ClassOscilloscope Tube
BaseDiheptal
Filament6.3 V @ 300 mA

Construction

Primary TypeDisplay / CRT
EnvelopeGlass
SectionsSingle gun

Filament / Heater

Heater NotesIndirect by A.C. or D.C.; parallel supply

Absolute Maximum Ratings

Plate Voltage12000 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Post accelerator voltage 10kV10000 V————

Application Notes

The tube should not be supported by the base alone. A low impedance deflection plate drive is desirable if full deflection capabilities are used.

Filters

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Manufacturers

Brands

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    Plate Dissipation6 W
    Grid 2 Voltage2100 V
    Grid 1 Voltage-200 V
    H-C Voltage200 V

    Audio Performance

    Key Features
    • Flat face
    • Post deflection acceleration
    • Helical electrode
    • Metal-backed screen
    • High sensitivity
    • High frequency
    • High writing speed