Tube-number record
LS 4
0 archive entries
LS 4 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand Valvo, construction Pentode, socket Special / none, maximum plate voltage 250 V, and maximum plate dissipation 9 W. The archive does not yet hold a photographed example of this type.
BrandValvo
ClassPentode
BaseSpecial / none
Filament12.6 V @ 0.42 mA
Construction
Primary TypePentode
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesIndirekt geheizte Oxydkathode
Absolute Maximum Ratings
Plate Voltage250 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Normaldaten | 250 V | 4000 | — | 250 | 36 mA |
| HF-Sendebetrieb (Eintakt) | 250 V | — | — | — | 55 mA |
| NF-Verstärkung (B-Schaltung) | 250 V | — | — | — | 48 mA |
Application Notes
Zulässig als Ersatz für RV 12 P 2000 in bestimmten Schaltungen. Reihenschaltung zweier Röhren bei 25V Heizspannung möglich.
Datasheets
Datasheet: LS4.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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