LV 13
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BrandTelefunken
ClassTriode
BaseRLM-Norm D 3201
Filament12.6V @ 1.4mA
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated oxide cathode. For pulse operation, 14.5V is recommended.
Absolute Maximum Ratings
Plate Voltage1200 V
Plate Dissipation30 W
Grid 1 Voltage250 V
Cathode Current200 mA
H-C Voltage100 V
Audio Performance
Key Features
- Luftfahrtrohre (Aviation Tube)
- High altitude safety (up to 18km)
- Vibration resistant
- Pulse amplifier capable
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Static Operation | 250V | 30000 | - | 20 | 160mA |
| Pulse Operation | 800V | - | - | - | 5mA |
Application Notes
Used in transmitter stages, pulse amplifiers, and oscillator circuits. External grid resistance restricted to 5000 Ohms in Class B/C operation.
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