Tube-number record
LS 30
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BrandTelefunken
ClassUKW-Triode
BaseSpecial / none
Filament12.6 V @ 285 mA
Construction
Primary TypeTriode
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesIndirectly heated oxide cathode; range 260-310 mA
Absolute Maximum Ratings
Plate Voltage700 V
Plate Dissipation32.5 W
Grid 1 Voltage-100 V
Cathode Current130 mA
H-C Voltage100 V
Audio Performance
Key Features
- UKW-Triode
- Indirekt geheizte Oxydkathode
- High transconductance
- Frequency dependent plate voltage ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Static Characteristics | 400 V | 6250 | 4208 | 26.3 | 60 mA |
| HF-Verstärkung (λ = 1.2m) | 700 V | — | — | — | 100 mA |
| Schwingbetrieb (λ = 53cm) | 400 V | — | — | — | 100 mA |
Application Notes
Specifically designed for decimeter wave applications. For minimized losses, it is recommended to mount contact springs directly onto circuit elements using socket type 1718.
Datasheets
Datasheet: LS30.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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