KR Audio : KR 842VHD : Join Our Little Club!

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Home >> KR Audio >> Tubes >> KR 842VHD


The 842HVD is an ultra-linear, low frequency, high power triode tube capable of producing 12-22 watts of pure class-A power. The 842HVD is a great tube for those special applications requiring 20 watts or more of class-A power. Recommended for new designs only. The 842HVD is, in a word, DYNAMIC! These tubes have the peak currents necessary to drive even the most difficult loads.  All KR Enterprise tubes are warranted for a period of 2 years.

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Specification Value
Pure Class-A Power (watts) 12-22
Plate Voltage Average (Volts) 450
Plate Voltage Maximum (Volts) 600
Plate Current Average (mA) 100
Plate Current Maximum (mA) 150
Plate Dissipation (watts) 65
Transconductance (mA/V) 4.8
Grid Voltage -95
Amplification Factor 4.8
Plate Resistance (ohms) 700
Load Resistance (ohms) 2000
THD (%) <0.1
Power Output (watts) 18
Filament Voltage (volts DC/AC) 5
Filament Current (A) 1.9