I do not know from what Yamaha amplifier?please help

Hello, I would like a little help, I do not know from what Yamaha amplifier what model are the transformer and the source of DC voltage?
and if the capacitors can use it for something, it is not too old. Thanks for the understanding.








 
Yamaha A-1000 used to use those caps and a GA6690 transformer. Could be from one of those or similar.

You can probably use them for a project if they test good.

But to test the transformer safely you need to understand basic electrics.

By the way, make sure those big capacitors are properly discharged as they can store lethal charge.