Tube-number record
TB 3/2000
0 archive entries
TB 3/2000 is a tube type in the TubeDatabase archive (class: Transmitting Triode). Recorded specifications: brand Philips, construction Triode, socket Special / none, maximum plate voltage 3500 V, and maximum plate dissipation 1100 W. The archive does not yet hold a photographed example of this type.
BrandPhilips
ClassTransmitting Triode
BaseSpecial / none
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
Materialthoriated tungsten
Absolute Maximum Ratings
Plate Voltage3500 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. class C telegraphy | 3500 V | 18000 | — | — | 1140 mA |
| H.F. class B telephony | 3500 V | 18000 | — | — | 485 mA |
| L.F. class B amplifier (two valves) | 3000 V | — | — | — |
Application Notes
The tube should be supported if it is mounted with base up. Mounting position: arbitrary with plane of anode vertical.
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