Comparator
2A3-TII direct-heated cathode medium-power dual triode, used for A1 and AB1 amplification.
Filament Heating
Voltage input................................2.5V
If .................................2.5A
Static parameters
Ua...................................... 300V
-Ug........................45V
Ia................................................60 mA
General Purpose ................................. 5.25 mA/V
ri........................ 0.8k
................................4.2
Output................................3.5W
Extreme Rating
Anode voltage: 300V
Anode power dissipation..................................15 W
Grid resistance
When the self-bias voltage is 0.5 MΩ
Fixed bias voltage: 0.05 M
Interelectrode capacitance
Input capacitance................................7.5 pF
Output Capacitance .................................16.5 pF
Inter-circuit capacitance..................................5.5 pF

Model:2A3-TII
Maximum power per channel: No power supply
Origin: Mainland China
Certification: CE
Product Type: Vacuum tube, electron tube
Replaces: 2A3B E-2A3 2A3-T 2A3-TII WE2A3
Application: tube amplifier, HIFI amplifier, DIY audio amplifier accessories