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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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163 vacuum tube outline illustration

Tube-number record

163

0 archive entries

163 is a tube type in the TubeDatabase archive (class: Sharp-Cutoff Pentode). Recorded specifications: construction Pentode, base Phenolic, socket Octal, maximum plate voltage 250 V, and maximum plate dissipation 0.75 W. The archive does not yet hold a photographed example of this type.

ClassSharp-Cutoff Pentode
BaseOctal
Filament6.3 V @ 0.3 mA

Construction

Primary TypePentode
EnvelopeST-12
Base MaterialPhenolic
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated cathode

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pentode Connection250 V1225150000015002.1 mA

Application Notes

The 163 is a version of the 6J7 specifically selected and processed for low-microphonic noise and low-hum in audio pre-amplifier stages.

Filters

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Manufacturers

Brands

    0 results
    Plate Voltage250 V
    Plate Dissipation0.75 W
    Grid 2 Voltage100 V
    Cathode Current10 mA

    Audio Performance

    Key Features
    • Specially designed for low-microphonic applications
    • Sharp-cutoff characteristic
    • Top-cap grid connection