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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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NL-619 vacuum tube outline illustration

Tube-number record

NL-619

0 archive entries

NL-619 is a tube type in the TubeDatabase archive (class: Mercury Vapor Rectifier Tube). Recorded specifications: brand National Electronics, Inc., construction Rectifier, socket Screw / Edison base, and maximum plate voltage 300 V. The archive does not yet hold a photographed example of this type.

BrandNational Electronics, Inc.
ClassMercury Vapor Rectifier Tube
BaseScrew / Edison base

Construction

Primary TypeRectifier
Rectifier TypeHalf-wave
EnvelopeGlass

Filament / Heater

Warm-up Time60s

Absolute Maximum Ratings

Plate Voltage300 V

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    Cathode Current6000 mA

    Audio Performance

    Key Features
    • Mercury vapor filled for long life
    • High efficiency operation
    • Sturdy mogul screw base
    • Designed for industrial applications