Tube-number record
PL 84
0 archive entries
PL 84 is a tube type in the TubeDatabase archive (class: Output Pentode). Recorded specifications: brand PHILIPS, construction Pentode, socket Noval (B9A), maximum plate voltage 250 V, and maximum plate dissipation 12 W. The archive does not yet hold a photographed example of this type.
BrandPHILIPS
ClassOutput Pentode
BaseNoval (B9A)
Filament15 V @ 300 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirect, AC or DC series supply
Absolute Maximum Ratings
Plate Voltage250 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A | 170 V | 11000 | 26000 | 8 | 70 mA |
| Class A (Triode connection) | 170 V | — | — | — | 50 mA |
Application Notes
The circuit should be designed so that peak anode current (Iap) does not exceed 145mA at Va=60V, Vg2=170V. For curves please refer to type UL 84.
Datasheets
Datasheet: PL84.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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