This tube have only Collector version:
filament heating(HIFI EXQUIS co, Limited)
U f---------------------------------------10 V
If----------------------------------------3.25 A
Limit rating
anode voltage----------------------------------1250 V
anode dissipation power-------------------------------75 W
The largest signal output power--------------------------150 W
The anode current largest -------------------------------120 mA;
interelectrode capacitance(HIFI EXQUIS co, Limited)
input capacitance----------------------------------6 PF
output capacitance----------------------------------4.5 PF(HIFI EXQUIS co, Limited)
transfer capacitance----------------------------------14.5 PF
static parameter
Ua--------------------------------------1250 V
—Ug-------------------------------------200 V
Ia---------------------------------------80 mA
Gm--------------------------------------3 mA/V
ri----------------------------------------1.7 KΩ
u----------------------------------------5
RL---------------------------------------3.4 KΩ(HIFI EXQUIS co, Limited)
Ug(pk)------------------------------------69 V
Pout-------------------------------------15 W
Recommend working status (reference)
(HIFI EXQUIS co, Limited)
Single tube class A1 amplification:
Ua-----1000 1000 1250 V
—Ug--- 145 155 209 V
RL-----6 9 16 KΩ(HIFI EXQUIS co, Limited)
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:(HIFI EXQUIS co, Limited)
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(HIFI EXQUIS co, Limited)
Ug(pk)----------------177 240 — — V
Ia(mAx.sig)---------170 230 230 240 mA
Pout----------------40 75 75 115 W