Tube-number record
TB 3/350
0 archive entries
TB 3/350 is a tube type in the TubeDatabase archive (class: Triode). Recorded specifications: brand Philips, construction Triode, socket 4-pin, maximum plate voltage 3000 V, and maximum plate dissipation 100 W. The archive does not yet hold a photographed example of this type.
BrandPhilips
ClassTriode
Base4-pin
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
Materialthoriated tungsten
Absolute Maximum Ratings
Plate Voltage3000 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. class C telegraphy | 3000 V | — | — | 38 | 167 mA |
| H.F. class C telegraphy | 2000 V | — | — | 38 | 167 mA |
| H.F. class C anode modulation | 2500 V | — | — | — |
Application Notes
Mounting position: vertical with base up or down.
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