Tube-number record
25QP20
0 archive entries
25QP20 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube (CRT)). Recorded specifications: brand TESLA, construction Display / CRT, base Metal, socket Loctal, and maximum plate voltage 10000 V. The archive does not yet hold a photographed example of this type.
BrandTESLA
ClassCathode Ray Tube (CRT)
BaseLoctal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialMetal
SectionsSingle
Filament / Heater
MaterialOxide
Warm-up Time40s
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| 6kV Operation | 6000 V | — | — | — | — |
| 8kV Operation | 8000 V | — | — | — | — |
Application Notes
Television CRT; outer surface of cone is covered with a conductive graphite layer and must always be grounded in operation. Recommend horizontal mounting position.
Datasheets
Datasheet: 25QP20.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results