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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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XCL 84 / 8DX8 vacuum tube outline illustration

Tube-number record

XCL 84 / 8DX8

0 archive entries

XCL 84 / 8DX8 is a tube type in the TubeDatabase archive (class: Triode-Pentode). Recorded specifications: brand IBRAPE / MINIWATT, construction Multi-section, maximum plate voltage 250 V, and maximum plate dissipation 4 W. The archive does not yet hold a photographed example of this type.

BrandIBRAPE / MINIWATT
ClassTriode-Pentode
Filament7.8 V @ 0.6 mA

Construction

Primary TypeMulti-section
EnvelopeGlass
Sections2

Filament / Heater

Heater NotesIndirect heating for AC or DC series supply

Absolute Maximum Ratings

Plate Voltage250 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Triode typical operation200 V4000—653 mA
Pentode typical operation set 1170 V110001000003618 mA
Pentode typical operation set 2200 V104001800003618 mA

Application Notes

Pentode designed specifically as video output valve; triode for keyed AGC, sync separation, and noise suppression.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Plate Dissipation4 W
    Grid 2 Voltage250 V
    Cathode Current40 mA
    H-C Voltage200 V

    Audio Performance

    Key Features
    • Separate cathodes
    • Triode for AGC keyed and sync separation
    • Pentode for video output
    Pentode typical operation set 3220 V100001500003618 mA
    Pentode video output set 1170 V104003000—18 mA