TJ FULLMUSIC 12AX7 DATA SHEET

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 2.12AX7_01 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.12AX7_02 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

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