Tube-number record
B319
0 archive entries
B319 is a tube type in the TubeDatabase archive (class: R.F. Double Triode). Recorded specifications: brand Marconi, year 1956, construction Dual triode, socket Noval (B9A), maximum plate voltage 250 V, and maximum plate dissipation 2 W. The archive does not yet hold a photographed example of this type.
BrandMarconi
ClassR.F. Double Triode
BaseNoval (B9A)
Filament7.4 V @ 0.3 mA
Construction
Primary TypeDual triode
EnvelopeTubular
Sections2
Filament / Heater
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2 W
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Cascode RF Amplifier | 90 V | 6000 | 4000 | 24 | 12 mA |
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