Tube-number record
RD 2,4 TA
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RD 2,4 TA is a tube type in the TubeDatabase archive (class: UHF Triode). Recorded specifications: brand Lorenz, construction Triode, socket Special / none, maximum plate voltage 300 V, and maximum plate dissipation 5 W. The archive does not yet hold a photographed example of this type.
BrandLorenz
ClassUHF Triode
BaseSpecial / none
Filament2.4 V @ 400 mA
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated oxide cathode
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation5 W
Grid 1 Voltage-200 V
Cathode Current30 mA
H-C Voltage75 V
Audio Performance
Key Features
- Dezimeterwellen-Triode
- Oxydkathode
- Preßglasfuß
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| UHF Amplifier | 100 V | 6000 | — | 20 | 24 mA |
Application Notes
The necessary grid bias is to be set by a resistor in the cathode line. Optimum plate voltage depends on wavelength (120-190V) with cathode resistance 150-500 Ohms.
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