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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-617 vacuum tube outline illustration

Tube-number record

NL-617

0 archive entries

NL-617 is a tube type in the TubeDatabase archive (class: Rectifier Tube). Recorded specifications: brand National Electronics, Inc., construction Rectifier, base Mogul Screw, socket Screw / Edison base, and maximum plate voltage 1000 V. The archive does not yet hold a photographed example of this type.

BrandNational Electronics, Inc.
ClassRectifier Tube
BaseScrew / Edison base

Construction

Primary TypeRectifier
Rectifier TypeHalf-wave
EnvelopeGlass
Base MaterialMogul Screw
Sections1

Filament / Heater

Warm-up Time60s

Absolute Maximum Ratings

Application Notes

Designed especially for industrial rectifier applications at 250 and 600 volts dc. Light filament before applying load. All data are based on returns to filament center tap.

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    Plate Voltage1000 V
    Cathode Current5000 mA

    Audio Performance

    Key Features
    • Sturdy mercury vapor rectifier
    • High efficiency
    • Long life
    • Withstands high peak inverse voltages