<< 12AU7/ECC82 Vacuum Tube

Classification- It is a Twin triode. It is a nine golden pins tube. Oxide coated of indirect heated.

Application -It intended for use a voltage amplifier or Phase inuerter.

Dimensions -Dimensions, outline diagrams of the tube and bases, and the arrangement of electrode connections to the base terminals are shown in Figures 1, and 2.

Fig 1
Fig 2

Nominal operating conditions and parameters
Heater voltage 12.6V
Heater current 0.15A
Plate voltage 250V
Grid voltage -8.5V
Plater resistance 7.7kohms
Plate current 10.5mA
Amplification factor 17

Characteristics-Average characteristics
Figure 3. shown typical curves of plate currents of grid voltage for several values of plate voltages. It is alternating-current filament supply.

Fig 3

Limiting Operation Conditions for Safe Nor simultaneous ratings
Maximum plate voltage 300V
Maximum Grid voltage -50V
Maximum Grid voltage 0V
Maximum Power of plate 1.0W