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Tube Database (7,341 tube types · 1,270 archive entries)

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Tube-number record

SD1A

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BrandTelefunken
ClassKurzwellen-Triode
Base5-pin
Filament1.9 V @ 0.5 mA

Construction

Primary TypeTriode
EnvelopeGlass
SectionsSingle

Filament / Heater

Heater NotesOxydkathode, indirekt geheizt; Serienschaltung von Röhren nicht möglich.

Absolute Maximum Ratings

Plate Voltage150 V
Plate Dissipation1.1 W
Cathode Current15 mA
H-C Voltage35 V

Audio Performance

Key Features
  • Kurzwellen-Triode
  • Schwingungserzeugung bis zu ca. 50 cm Wellenlänge

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Normaler Arbeitspunkt75 V3200450014.310 mA

Application Notes

Die SD 1A ist zur Schwingungserzeugung bis zu ca. 50 cm Wellenlänge geeignet.

Datasheets

Datasheet: SD1A.pdf

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Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

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