Tube-number record
NL-635
0 archive entries
NL-635 is a tube type in the TubeDatabase archive (class: Rectifier Tube). Recorded specifications: brand National Electronics, Inc., construction Other / special, base Industrial, socket 4-pin, and maximum plate voltage 1000 V. The archive does not yet hold a photographed example of this type.
BrandNational Electronics, Inc.
ClassRectifier Tube
Base4-pin
Construction
Primary TypeOther / special
Rectifier TypeHalf-wave
EnvelopeGlass
Base MaterialIndustrial
Sections1
Filament / Heater
Warm-up Time60s
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rectifier | 9 V | — | — | — | 6400 mA |
Application Notes
Satisfactory operation will be obtained between -40 to +100C. For long life the tube should be operated between +40 to +100C condensed mercury. Light filament before applying load. All data based on returns to filament transformer center tap.
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