PSVANE 2A3-TII hi-end Vacuum Tube Classic Grade Best Matched pair 2A3-T Mark II Electronic Valve
PSVANE 2A3-TII hi-end Vacuum Tube Classic Grade Best Matched pair 2A3-T Mark II Electronic Valve

PSVANE 2A3-TII hi-end Vacuum Tube Classic Grade Best Matched pair 2A3-T Mark II Electronic Valve

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Model: 2A3-T Mark II Classic
$239.11USD$195.99USD

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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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