Amplifiers
1PCS 2A3B Vacuum Tube Replaces 2A3C WE2A3 2A3T E2A3 A2A3 2A3 Electronic Tube Amplifier
Filament heating:
Uf ---2.5v
If ---2.5A
Extreme rated value
Anode voltage: 300v
Anode dissipation power: 15W
Gate resistance
At self bias voltage: 0.5-- MO
When the bias voltage is fixed: 0.05---
Interpolar capacitance
Input capacitance: 7.5PF
Output capacitance: 16.5PF
Cross circuit capacitance: 5.5PF
Static parameters: Ua -- --250V
-Ug --45V
La --60MA
Gm --5.25mA/V
Ri --0.8
---- four point two
Pout --3.5
Recommended working status (reference value)
Single tube A1 class amplification (fixed bias)
Ua --250V
-Ug --45V
RL --------2.5
La (0) ------ -60MA
GM --------5.25mAV
Ri --0.8k
----------- four point two
Pout --------3.5w
Dtot --5%
Push pull AB1 class amplification
Fixed bias self bias
Ua -- -300 300V
-Ug-62 Rk-780 V
RL --3 5
Ug (pk) --87 110V
Ia (0) -80 80MA
La (max, sig) --140 100 MA
Pout -------15 10W
Dtot --2.5 5%

High-concerned chemical : None