Description

2AU7-TII is double triode small size novel tube, it is used as inverter drive push-pull amplifier in amplifying circuit.

Heater
Uf—————–6.3(并) 12.6(串) V
If——————-0.30 0.15 A
Direct Interelectrode Capacitances
No.1 No.2
input———- 1.6 1.6 PF
output———- 0.4 0.32 PF
grid to plate———-1.5 1.5 PF
Static parameter
Ua————–100 250 V
—Ug————-0 8.5 V
Ia—————11.8 10.5 mA
Gm————–3.1 2.2 mA/V
u————— 20 17
ri(approx)———6.5 7.7 KΩ
Ug(approx)——–—11.8 —10.5 V
(when Ia=10uA)
class A1.maximum.single triode.
Ua—————-300 V
Pa————-2.75 W
Ik(max)————-20 mA
Ug—————-—50 V
Uh-k(pk)——–±200 V
Rg
with cathode bias—————-1 MΩ
with fixed bias————– 0.25 MΩ