2 pcs =1 Matched Pair PSVANE Vacuum Tubes 12AT7-T Mark II Premium Re ECC81 12AT7 Valve tube Audio tube


Product Code: 12AT7-T Premium

Availability: In Stock

Price: $66.99
Ex Tax: $66.99

2 pcs =1 Matched Pair PSVANE Vacuum Tubes 12AT7-T Mark II Premium Re ECC81

 12AT7-TII is double triode small size novel tube,it is used as voltage magnification in amplifying circuit and inverter drive push-pull amplifier.
Uf---------------------6.3(并) 12.6(串) 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
with cathode bias  --------------1 MΩ
with fixed bias ----------0.25 MΩ


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Diyaudiotube starts suppying NOS tubes to tube AMP factories since 2010. Nowadays, we are also suppying new tubes and other hifi DIY parts to tube amplifier factories and audiophiles.