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Tube-number record
C3M
1 archive entry
BrandSiemens
ClassUniversal-Pentode
BaseSpecial / none
Filament20 V @ 125 mA
Construction
Primary TypePentode
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesIndirekt durch Wechsel- oder Gleichstrom, Parallel- oder Serienspeisung
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation4 W
Grid 2 Voltage300 V
Grid 1 Voltage-100 V
Cathode Current30 mA
H-C Voltage120 V
Audio Performance
Typical THD10%
Power Output1.5 W
Key Features
- Lange Lebensdauer (> 10 000 Std.)
- Große Zuverlässigkeit
- Enge Toleranzen
- Zwischenschichtfreie Spezialkathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 220 V | 6500 | 250000 | 19 | 16 mA |
| Triode | 220 V | 7200 | 2500 | 18 | 18.5 mA |
Application Notes
Besonders geeignet für NF-, ZF- und HF- Verstärker in Vor- und Endstufen, Oszillatoren, Mischstufen und Regelverstärker.
Datasheets
Datasheet: C3m.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.