What is the difference between 2SA1943 and TTA1943?

[KAKU]

The original machine is equipped with 2SA1943 and 2SC5200. I have a pair of power amplifier tubes 2SA1943 and TTC5200. I don’t know if these transistors can be mixed. I have reference to the information of 2sa1943, but I would like to ask if anyone knows the rated voltage, current, power and other parameters?
Thanks in advance!

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[PETERDECO]

The 2SA1943 and 2SC5200 are both rated 250V, 17A. The TTC5200 is 230V, 15A. You can easily google these for the datasheets.

 

[KAKU]

The 2SA1943 and 2SC5200 are both rated 250V, 17A. The TTC5200 is 230V, 15A. You can easily google these for the datasheets.

Thank u. I have finished it.