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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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5AS8 vacuum tube outline illustration

Tube-number record

5AS8

0 archive entries

5AS8 is a tube type in the TubeDatabase archive (class: Diode Pentode). Recorded specifications: brand Tung-Sol, year 1964, construction Pentode, base Glass, socket Noval (B9A), maximum plate voltage 300 V, and maximum plate dissipation 2.5 W. The archive does not yet hold a photographed example of this type.

BrandTung-Sol
ClassDiode Pentode
BaseNoval (B9A)
Filament4.7 V @ 600 mA

Construction

Primary TypePentode
EnvelopeGlass
Base MaterialGlass
Sections2

Filament / Heater

MaterialCoated Unipotential Cathode
Warm-up Time11s

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pentode Section200 V6200300000—9.5 mA

Application Notes

Intended for diversified applications in television and radio receivers.

Filters

0 tubes found

Manufacturers

Brands

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    Heater Notes
    Design center value; Limits: 600 +/- 40 mA

    Absolute Maximum Ratings

    Plate Voltage300 V
    Plate Dissipation2.5 W
    Grid 2 Voltage300 V
    H-C Voltage200 V

    Audio Performance

    Key Features
    • Miniature Type
    • High perveance diode
    • Sharp-cutoff pentode
    • 9 Pin Construction