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
For fix biasing voltage…………………0.05 M
Capacitances
Input capacitance……………… 7.5pF
Output capacitance……………16.5pF
Muller capacitance…………..……5pF
DC Parameters
Ua………………………… 300V
-Ug………………………… 45V
Ia………………………… 60mA
Gm………………………… 5.25mA/V
ri………………………… 0.8k
u………………………… 4.2
Pout…………………………3.5W
Recommended Operating Conditions (suggested value)Single tube class A amplifying (fix biasing voltage)
Ua………………… 250V
-Ug…………………45V
RL…………………2.5 k
Ia(0)…………………60mA
Gm………………5.25 Ma/V
ri……………………0.8 K
u……………………4.2
Pout…………………3.5 W
Dtot……………………5 %
Driving class AB amplifier
fixed biasing self-biasing
Ua……………300 300 V
-Ug……………62V Rk=780
RL……………3 5 k
üg(pk)………87 110 V
Ia(0)…………80 80 mA
Ia(max.sig)…140 100 mA
Pout……………15 10 W
Dtot……………2.5 5 %