2 PCS Collector Vers : is come with 2 matched collector version tubes
4 PCS Collector Vers : is come with 4 matched collector version tubes
211 TII have only Collector version
Directly-heated type thorium tungsten cathode triode
can be used for Class A, B, C power amplification
filament heating(HIFI EXQUIS co, Limited)
Uf--------------------------------------10 V
If---------------------------------------3.25 A
interelectrode capacitance
input capacitance----------------------------------6 PF
output capacitance----------------------------------5.5 PF
transfer capacitance----------------------------------14.5 PF
static parameter(HIFI EXQUIS co, Limited)
Ua--------------------------------------1250 V
?Ug------------------------------------70 V
Ia--------------------------------------100 mA
Gm-------------------------------------3.8 mA/V
u(Ia=75mA)---------------------------12
RL--------------------------------------7 KΩ
Pout------------------------------------10 W
(HIFI EXQUIS co, Limited)
Recommend working status (reference)
Single tube class A amplifier (A - F) :
Typical working conditions absolute rating
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
(HIFI EXQUIS co, Limited)
Push-pull class B power amplifier (A - F):
Typical working conditions absolute rating
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(HIFI EXQUIS co, Limited)
Ug(pk)-----------------380 410 V
Ia (0)------------------20 20 mA(HIFI EXQUIS co, Limited)
Ia(mAx.sig)-----------320 320 mA
Pd(mAx.sig)------------7.5 8 W
RL(a?a)---------------6.9 9 KΩ
Pout------------------200 260 W