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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 ........................6.3V/12.6V
Heater current ........................0.6A/0.3A
Plate voltage ...........................250V
Grid voltage ............................-8V
Plater resistance ...................7.7k
Plate current ...........................9mA
Amplification factor ................20
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 Grid voltage ....................-50V
Maximum Grid voltage ....................0V
Maximum Power of plate ...............2.5W