It is not a triode, but a low voltage differential voltage regulator with a voltage regulator value of 3.3V. The shape is the same as the commonly used 9013 triode. You can replace...
It is not a triode, but a low voltage differential voltage regulator with a voltage regulator value of 3.3V. The shape is the same as the commonly used 9013 triode. You can replace it with the usual HT7333.