Vacuum Tube Rectifier 845B Vacuum Tube Replace 845C 845 845T WE845 845DG HiFi Audio Valve Electronic Tube Amplifier DIY(4pcs Matched Quad)
The has good linearity low noise and good reliability
The tube is designed for service as power rectifiers in AC operated receivers which require high currents.
The service life longer and the failure rate greatly reduced.
The special with signal and has low noises output.
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Detail
vacuum tube
Filament heating
U f: 10 V
If: 3.25 A
Ultimate rating
Anode voltage: 1250 V
Anode dissipation power: 75 W
Maximum signal output power: 150 W
Maximum anode current: 120 mA;
Interpole capacitance
Input capacitance: 6 PF
Output capacitance: 4.5 PF
Cross circuit capacitance: 14.5 PF
Static parameters
Ua: 1250 V
- Ug: 200 V
Ia: 80 mA
Gm: 3 mA/V
Ri: 1.7 K
u: 5
RL: 3.4 K
Ug(pk): 69 V
Pout: 15 W
Recommended working state (reference value)
Single tube A1 class amplification:
Ua-----1000 1000 1250 V
-Ug--- 145 155 209 V
RL-----6 9 16 K
Ia------90 65 52 mA
Gm-----3.1 - - mA/V
Ug(pk)--- 110 148 V
ri------1.7 1.9 2.1 K
Pout----24 21 24 W
Push pull AB1 type amplification:
Ua------------------ 800 1000 1000 1250 V
-Ug---------------- 125 170 175 225 V
RL------------------ 4.5 4.6 4.6 6.6 K
Ia--------------------80 70 40 40 mA
Ug(pk)----------------177 240 - - V
Ia(mAx.sig)---------170 230 230 240 mA
Pout----------------40 75 75 115 W
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Channels : 1
Model Number : 845B
Maximum Power Per Channel : NO POWER
Origin : Mainland China -
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