RD 12 TE
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BrandLorenz
ClassDezimeterwellen-Triode
Base24 bD 4021
Filament12.6V @ 220mA
Construction
Primary TypeTriode
EnvelopeGlass
Base MaterialPressglasfuß
SectionsSingle
Filament / Heater
Heater NotesOxydkathode, indirekt geheizt
Absolute Maximum Ratings
Plate Voltage400 V
Plate Dissipation10 W
Cathode Current70 mA
H-C Voltage75 V
Audio Performance
Key Features
- UHF Triode
- Oxide Cathode
- Indirectly Heated
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Static Characteristics | 100V | 9000 | - | 22 | 35mA |
Application Notes
Designed as an oscillator/transmitter for wavelengths around 50cm (UHF). Efficiency approximately 35% at 50cm. Grid bias should be set via a cathode resistor (150 to 500 Ohms depending on operation).
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