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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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EZ3 vacuum tube outline illustration

Tube-number record

EZ3

0 archive entries

EZ3 is a tube type in the TubeDatabase archive (class: Full-wave vacuum rectifier). Recorded specifications: brand Philips, construction Rectifier, and maximum plate voltage 400 V. The archive does not yet hold a photographed example of this type.

BrandPhilips
ClassFull-wave vacuum rectifier
Filament6.3 V @ 650 mA

Construction

Primary TypeRectifier
Rectifier TypeVacuum
EnvelopeGlass
Sections2

Filament / Heater

MaterialIndirectly heated
Warm-up Time24s

Application Notes

Designed for medium power receivers. The heating time of 24 seconds is specifically chosen to be longer than the output stage to prevent high-voltage surges before current draw begins.

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Manufacturers

Brands

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    Heater Notes
    Separate heater winding required; cathode must be connected to one side of the filament.

    Absolute Maximum Ratings

    Plate Voltage400 V
    Cathode Current100 mA

    Audio Performance

    Key Features
    • Indirectly heated
    • Biplaque (full-wave)
    • Medium power application
    • Longer warmup time than typical output stages