TII-Series: Positioning in exceeding totally, not only exceed all the same types of productions that always been imitating on the market, but also to exceed itself.
211-TII is direct-heated type thorium tungsten cathode triode, can be used as class A, B and C.
Heater
Uf------------------------------------10 V
If--------------------------------------3.25 A
Direct Interelectrode Capacitances
input----------------------------------6 PF
output---------------------------------5.5 PF
grid to plate--------------------------14.5 PF
Static parameter
Ua--------------------------------------1250 V
—Ug------------------------------------70 V
Ia--------------------------------------100 mA
Gm--------------------------------------3.8 mA/V
u(when Ia=75mA/h)-------------------------12
RL--------------------------------------7 KΩ
Pout------------------------------------10 W
Recommended Operating Conditions ( reference value)
class A(A-F) for two tubes:
typical working condition limited parameter
Ua--------750 1000 1250 1250 V
Pa------------75 W
—Ug-------46 61 80 V
Ug(pk)-----41 56 75 V
Ia(0)-------34 53 60 mA
ri---------4.4 3.8 3.6 KΩ
RL--------8.8 7.6 9.2 KΩ
Pout-------5.6 12 19.7 W
Push-pull. class B(A-F)
typical working condition limited parameter
Ua------------------ 1000 1250 1250 V
Ia (mAx.sig per tube)------------------175 mA
Pa (in) (mAx.sig per tube)-------------220 W
Pa (per tube)------------------------- 100 W
—Ug-------------------72 95 V
Ug(pk)-----------------380 410 V
Ia (0)-----------------20 20 mA
Ia(mAx.sig)A
