Tube-number record
7591 S
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BrandJJ Electronic
ClassPower Pentode
BaseOctal
Filament6.3 V @ 0.8 mA
Construction
Primary TypePentode
Filament / Heater
Absolute Maximum Ratings
Plate Voltage550 V
Plate Dissipation19 W
Grid 2 Voltage440 V
Cathode Current85 mA
H-C Voltage200 V
Audio Performance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 amplifier | 300 V | 10000 | 29000 | 16.8 | 60 mA |
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