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Home >> KR Audio >> Tubes >> KR 845

KR 845
The 845 is a low frequency, high power, high voltage triode, capable of producing 20-26 Watts of pure class-A power. The 845 features a new ribbon filament construction and the KR Audio exclusive patent design with 32 cathodes.

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Specification Value
Pure Class-A Power (watts) 20-26
Plate Voltage Average (Volts) 650
Plate Voltage Maximum (Volts) 1250
Plate Current Average (mA) 90
Plate Current Maximum (mA) 140
Plate Dissipation (watts) 100
Transconductance (mA/V) 3.5
Grid Voltage -87
Amplification Factor 5.3
Plate Resistance (ohms) 1200
Load Resistance (ohms)  
THD (%) <0.1
Power Output (watts)  
Filament Voltage (volts DC/AC) 10
Filament Current (A) 1.0