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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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35HB8 vacuum tube outline illustration

Tube-number record

35HB8

0 archive entries

35HB8 is a tube type in the TubeDatabase archive (class: Triode-Pentode Miniature Type). Recorded specifications: brand Tung-Sol, year 1960, construction Multi-section, base Miniature Button, socket Noval (B9A), maximum plate voltage 150 V, and maximum plate dissipation 6.5 W. The archive does not yet hold a photographed example of this type.

BrandTung-Sol
ClassTriode-Pentode Miniature Type
BaseNoval (B9A)
Filament35 V @ 0.15 mA

Construction

Primary TypeMulti-section
EnvelopeGlass
Base MaterialMiniature Button
Sections2

Filament / Heater

Heater NotesCoated Unipotential Cathode

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Triode Section115 V3900—742.5 mA
Pentode Section115 V6250——33 mA

Application Notes

Designed for audio applications in stereo and monaural sound equipment. The heater should be connected with pin #4 closest to the ground end of the heater string.

Filters

0 tubes found

Manufacturers

Brands

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    Plate Voltage150 V
    Plate Dissipation6.5 W
    Grid 2 Voltage135 V
    Cathode Current50 mA
    H-C Voltage200 V

    Audio Performance

    Typical THD8%
    Power Output1 W
    Key Features
    • Miniature construction
    • Triode-pentode combination