Tube-number record
E280F/7722
0 archive entries
E280F/7722 is a tube type in the TubeDatabase archive (class: Wideband Pentode Amplifier). Recorded specifications: brand CBS Electronics, construction Pentode, socket Noval (B9A), maximum plate voltage 220 V, and maximum plate dissipation 4 W. The archive does not yet hold a photographed example of this type.
BrandCBS Electronics
ClassWideband Pentode Amplifier
BaseNoval (B9A)
Filament6.3 V @ 320 mA
Construction
Primary TypePentode
EnvelopeT-6 1/2
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage220 V
Plate Dissipation4 W
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 190 V | 26000 | 100000 | — | 20 mA |
| Triode | 160 V | 33000 | 1800 | 60 | 24.5 mA |
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