Valvola elettronica PSVANE 2A3-TII hi-end Classic Grade Best Matched coppia valvola elettronica 2A3-T Mark II
All items ONE-YEAR WARRANTY !!!
We can Declare the Value of the Order as Customer's Remark!!!
The price is for a pair of 2A3-TII hi-end vacuum tube (2 pcs).
The 2A3-TII direct heating cathode power double triode is used for A1 and AB1 class amplification.
All items guaranteed 100% BRAND NEW in the original edition Box.
ONE-YEAR WARRANTY !!!
Filament heating
Uf .............................. 2.5 V
If .............................. 2.5 A
Static parameters
Ua .............................. 300 V
-Ug .............................. 45 V
Ia .............................. 60 mA
Gm .............................. 5.25 mA / V
ri .............................. 0.8 kΩ
μ .............................. 4.2
Pout .............................. 3.5 W
Limit rating
Anode voltage .............................. 300 V
.............................. 15 W anode dissipation power
Gate resistance
Self-bias .............................. 0.5 MΩ
Fixed bias .............................. 0.05 MΩ
Electrode capacitance
Input capacitance .............................. 7.5 PF
Output capacitor .............................. 16.5 PF
The cross road capacitance .............................. 5.5 PF
Recommended work status (reference value)
Class A1 amplifier (single tube fixed bias)
Ua ..................... 250 V
-Ug ........................ 45 V
RL ........................ 2.5 kΩ
Ia (0) ..................... 60 mA
Gm ........................ 5.25 Ma / V
ri ........................ 0.8 Kω
μ ........................ 4.2
Pout ........................ 3.5 W
Dtot ........................ 5%
Driving AB1 amplify
Fixed bias self-bias
Ua ............... 300 300 V
-Ug .............. 62 Rk = 780Ω V
RL ............... 3 5kΩ
üg (pk) ......... 87 110 V
Ia (0) .......... 80 80 mA
Ia (max.sig) ... 140 100 mA
Pout ............ 15 10 W
Dtot .............2.5 5%
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