Panasonic CT-1310M keeps blowing horizontal output transistor

[damen]

There is quite a pulse on that transistor case, you can't use layers of tape to replace the original mica insulator.

[luRaichu]

Originally Posted by damen

There is quite a pulse on that transistor case, you can't use layers of tape to replace the original mica insulator.

This is 3M Super 8 electrical tape. The HOT is rated for 600v max, so is the electrical tape iirc. Although it would explain the goopified tape around one of the HOT legs.
I don't have the original mica sheet. It was glued to the old, busted HOT with some weird white substance.