E280F/7722
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BrandCBS Electronics
ClassWideband Pentode Amplifier
Base9-pin miniature button
Filament6.3V @ 320mA
Construction
Primary TypePentode
EnvelopeT-6 1/2
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage220 V
Plate Dissipation4 W
Grid 2 Voltage180 V
Grid 1 Voltage-50 V
Cathode Current30 mA
H-C Voltage120 V
Audio Performance
Key Features
- Very high transconductance
- Wideband amplifier
- Miniature envelope
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 190V | 26000 | 100000 | - | 20mA |
| Triode | 160V | 33000 | 1800 | 60 | 24.5mA |
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