Analog Metric Limited
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Shuguang Vacuum Tube 2A3 Series
Triode: 2A3B (2A3)
DESCRIPTION
2A3B is compatible with 2A3. It is direct heating cathode and low power consumption. Two triodes can be used in class A and AB amplification. The output power of single tube can reach 6.5W. High evacuated tube, it achieve high performance tube in audio frequency.
FEATURES
New filament hooking design Plate of high carbon alloy Using high transparency of T16 as glass envelope
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SPECIFICATION
Filament Heating Uf ……………………… 2.5 V If…………………………2.5 A
Maximum Ratings Plate voltage…………………………300 V Plate power dissipation…………….…15 W Grid resistance For self-biasing voltage…………………0.5 M Ω For fix biasing voltage…………………0.05 M Ω
Capacitances Input capacitance……………… 7.5pF Output capacitance……………16.5pF Muller ...