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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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4B24 vacuum tube outline illustration

Tube-number record

4B24

0 archive entries

4B24 is a tube type in the TubeDatabase archive (class: Full-wave Rectifier). Recorded specifications: brand Electrons, Inc., construction Other / special, base Industrial, socket 4-pin, and maximum plate voltage 725 V. The archive does not yet hold a photographed example of this type.

BrandElectrons, Inc.
ClassFull-wave Rectifier
Base4-pin

Construction

Primary TypeOther / special
Rectifier TypeFull-wave
EnvelopeGlass
Base MaterialIndustrial
SectionsDual Anode

Filament / Heater

MaterialTantalum (Anode)

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Continuous Rectification250 V———2500 mA

Application Notes

Preferable to light filament before applying D-C load. Cold starts consume tube life and may blow primary fuses above 115V anode voltage. Phasing of filament voltage relative to anode voltage insures lower arc drop and longer life.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Warm-up Time
    30s

    Absolute Maximum Ratings

    Plate Voltage725 V
    Cathode Current2500 mA

    Audio Performance

    Key Features
    • Tantalum Anode
    • Xenon Gas Filling
    • Full-wave Rectifier