Panasonic CT-1310M keeps blowing horizontal output transistor

[ARC Tech-109]

I remember when HOTs were over $25.00 at Ness Electronics, as for ceramics I've seen those stacked units shift over time. I'm a 20 year member of Audiokarma and there has been a debate on & off over the decades. Regardless, I'm not into spending money on transistors just to blow them out on a chance that come capacitor is somehow going to behave, I grew up in a TV shop during the late 70's and early 80's and have seen plenty of magic smoke.