transistor amp not working after shorting output

i already built box for it when amp is finished (hopefully xd) i will finish the box, like sanding and the paintjob so after that i can put it all together and i have 15inch cabinet (speaker ) 60w that i will use in combination with this amp. thats a plan xdd
 
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If the power was turned on without the screw, then the base could connect to the collector and the transistor could burn out or degrade.
The same thing could happen to another transistor if the heatsinks touched each other.
 
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i need only small transistors to be labeled from the above view as in pic i sent, i dont want to risk tbh xd btw it took more time than i anticipated but they are here i only have to buy caps and i can finally can start to fix this amp for good 😀
 
yes thats my issue i cant just look at data sheets xdd i can install new parts i can check pinout for them but for those on board i have no clue. and i am not skilled enough to find out on my own and i dont want to make a mistake. thats why i ask if someone can help me with this 😀 rest i can do on my own.