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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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4264-A vacuum tube outline illustration

Tube-number record

4264-A

0 archive entries

4264-A is a tube type in the TubeDatabase archive (class: Triode). Recorded specifications: brand Standard Valves, construction Triode, socket 4-pin, and maximum plate voltage 100 V. The archive does not yet hold a photographed example of this type.

BrandStandard Valves
ClassTriode
Base4-pin

Construction

Primary TypeTriode
EnvelopeGlass

Filament / Heater

MaterialOxide coated

Absolute Maximum Ratings

Plate Voltage100 V
Cathode Current2.8 mA

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Typical (60V)60 V623.9117007.32.35 mA
Typical (90V, -7V bias)90 V562.5128007.21.9 mA
Typical (100V, -8V bias)100 V580.6124007.22.1 mA

Application Notes

Curves taken with direct filament heating; grid and anode voltages referred to the negative end of the filament.

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    Audio Performance

    Key Features
    • Oxide coated filament
    • Constant current type
    • Direct filament heating
    Typical (90V, -5.5V bias)90 V637.2113007.22.8 mA
    Typical (100V, -7V bias)100 V631.6114007.22.7 mA