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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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3B/100-B vacuum tube outline illustration

Tube-number record

3B/100-B

0 archive entries

3B/100-B is a tube type in the TubeDatabase archive (class: TRIODE). Recorded specifications: brand Standard Valves, construction Triode, socket 5-pin, maximum plate voltage 200 V, and maximum plate dissipation 10 W. The archive does not yet hold a photographed example of this type.

BrandStandard Valves
ClassTRIODE
Base5-pin
Filament4 V @ 1.1 mA

Construction

Primary TypeTriode
EnvelopeGlass
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated oxide coated. Constant voltage type.

Absolute Maximum Ratings

Plate Voltage200 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A AF Amplifier200 V650020001340 mA
Class A AF Amplifier (Point 1)100 V—8000—23 mA
Class A AF Amplifier (Point 3)150 V—10000—40 mA

Application Notes

Typical performance data recorded at Vp = 200V, Vg1 = -10V.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Plate Dissipation10 W
    Cathode Current50 mA

    Audio Performance

    Typical THD3%
    Power Output0.25 W
    Key Features
    • Indirectly heated oxide coated
    • Constant voltage type
    • Standard British 5-pin base