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LS 30

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BrandTelefunken
ClassUKW-Triode
BaseLg.eNr. 1718 / 1728
Filament12.6V @ 285mA

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

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Static Characteristics400V6250420826.360mA
HF-Verstärkung (λ = 1.2m)700V---100mA
Schwingbetrieb (λ = 53cm)400V---100mA

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.

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