12AX7 (ECC83) (TJ Fullmusic. Gold Pin. Matched Pair.)

Description

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

Application -It intended for use a NF voltage amplifier or Phase inuerter. It is Low noise tube.

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 ………………………………………………………………… -2V

Plate resistance …………………………………………………………… 62.5kohms

Plate current ………………………………………………………………… 1.2mA

Amplification factor …………………………………………………………… 100

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 …………………………………………………………… 300 V

Maximum negative Grid voltage ………………………………………………… -50V

Maximum positive Grid voltage …………………………………………………… 0V

Maximum Power of plate ………………………………………………………… 1.0W