Tube-number record
5861
0 archive entries
5861 is a tube type in the TubeDatabase archive (class: Disc seal triode for decimetric waves). Recorded specifications: brand Philips, year 1949, construction Triode, base Metal, socket Planar / disc seal, maximum plate voltage 350 V, and maximum plate dissipation 10 W. The archive does not yet hold a photographed example of this type.
BrandPhilips
ClassDisc seal triode for decimetric waves
BasePlanar / disc seal
Filament6.3 V @ 400 mA
Construction
Primary TypeTriode
EnvelopeMetal/Glass Disc Seal
Base MaterialMetal
Sectionssingle
Filament / Heater
Heater NotesCoated unipotential cathode
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Characteristic | 250 V | 6000 | — | 30 | 20 mA |
Application Notes
In order to limit the plate seal temperature and also to limit the rate of change of plate seal temperature, it is necessary for the mass of metal in close thermal contact with the plate disc to be not less than 60 grams (2 oz.) of brass or its equivalent.
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