572B Replacement 572B HiFi Audio Tube Amplifier Kit DIY(4pcs Matched Quad)
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Detail
Preamps
572B Directly heated cathode high μ triode 572B, used for oscillation and power amplification in equipment
Filament Heating
Voltage: 6.3V
If: 4A
Extreme Rating
Anode voltage: 1250V
Anode current at maximum signal: 210 mA
Anode dissipation power: 125W
Gate current: 50mA
Interelectrode capacitance
Input capacitance: 6PF
Output capacitance: 0.9PF
Inter-circuit capacitance: 5.9PF
Static parameters
Voltage: 2000V
-Ug: 2V
Current: 32 mA
µ(at Ia=20mA):190
Recommended working status (reference value)
Single tube A1 type amplifier (single-ended)
UA:750
Ugg: 30
Ia(0): 130
Ia (maximum signal): 210
U(.pk) : 60
Ia (maximum signal): 210
RL: 5
Pout (when Dtot=5%): 40
Push-pull AB2 amplifier
UA: 1000
Ugg: 20
IA(0) : 75
Ia (maximum signal): 300
U(.pk) : 195
RL: 8
Pout (when Dtot=5%): 150
Channels: 1
Model: 572B
Maximum power per channel: No power supply
Origin: Mainland China
Certification: CE -
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