PSVANE 845B hifi Audio Vacuum Tube a pair amplifier tube

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ONE-YEAR WARRANTY !!!


U f---------------------------------------10 V
If----------------------------------------3.25 A
Limit rating
Anode voltage----------------------------------1250 V
Anode power dissipation -------------------75 W
Output power at maximum signal ----------- 150 W
Maximum current of anode ---------------120 mA;
Inter-electrode 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 KΩ
u----------------------------------------5
RL---------------------------------------3.4 KΩ
Ug(pk)------------------------------------69 V
Pout-------------------------------------15 W
Recommended working status (reference value)
Single tube type A1 amplification:
Ua-----1000 1000 1250 V
—Ug--- 145 155 209 V
RL-----6 9 16 KΩ
Ia------90 65 52 mA
Gm-----3.1 — — mA/V
Ug(pk)--- 110 148 V
ri------1.7 1.9 2.1 KΩ
Pout----24 21 24 W
Push-pull class AB1 amplification:
Ua------------------ 800 1000 1000 1250 V
—Ug---------------- 125 170 175 225 V
RL------------------ 4.5 4.6 4.6 6.6 KΩ
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