Miniature 9 Pins Stereo Hybrid Tube Amp , Digital Vacuum Tube Amp Medium Gain

Psvane 12AT7-T MKII Valve Tube 12AT7 ECC81 miniature 9-pin medium-gain (60) dual-triode guitar amplifier vacuum tube

12AT7-TII
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.

12AT7-TII is double triode small size novel tube,it is used as voltage magnification in amplifying circuit and inverter drive push-pull amplifier.
Heater
Uf---------------------6.3V 12.6 V
If----------------------------0.30 0.15 A
Direct Interelectrode Capacitances
grid to grid----------0.005 PF
plate to plate-------------------0.4 PF
grid to plate(single triode) -------1.5 PF
grid to cathode and filament(single triode)------2.2 PF
plate to cathode and filament(single triode)------0.5 PF
filament to cathode(single triode) -----------2.4 PF
palte to cathode(single triode)-----------0.2 PF
cathode to filament and grid(single triode) -----4.6 PF
plate to filament and grid(single triode)------1.8 PF
static parameter
Ua--------------------100 250 V
Ia---------------------3.7 10 mA
Gm--------------------4 5.5 mA/V
Rk---------------------270 200 Ω
u----------------------60 60
ri(approx)---------------15 10.9 KΩ
Ug(approx)--------------—5 —12 V
(when la=10Ua)

class A1.maximum.single triode.
Ua-----------------300 V
Pa--------- 2.5 W
Ug----------------—50 V
Uh-k(pk)--------±90 V
Rg
with cathode bias --------------1 MΩ
with fixed bias ----------0.25 MΩ