70s "Deluxe Bass Amp" - Who Made It? Is It Worth Repairing?

I don't know what it is other than it's a vintage 1970s solid state Japanese "Deluxe Bass Amp" student grade 5W guitar head probably imported and sold in the United States by some random catalog or music store. Ok, well, maybe I do know what it is. But what's wrong with it? Is it worth fixing? Is this video worth watching? Will our soldering iron-wielding hero survive!?!?!
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