Preamps
describe
HIFI series vacuum tubes
Item No.: 2A3B
Black bakelite tube socket/ceramic tube socket
UA300V
-Ug45V
Current..60 mA
On-resistance 5.25 mA/V
ri ...0.8 k
... 4.2
Water output 3.5W
Single A1 Amplifier:
Voltage source... 250 volts
Uh...45 volts
Tieback......2.5K
Ia(0) .......60 mA
Gm....5.25 mA/V
ri.......0.8 K
........4.2
Water output 3.5W
Total 5%
AB1 Amplifier:
Ua300 300V
-Ug62 Rk=780V
RL3 5K
üg(peak)87 110 V
Current (0) 80 80 mA
Ia (maximum signal) 140 100 mA
Output power 15 10 watts
Total 2.5 5%