Sell it for parts cheapish or get it fixed. There is probably an audio tech near you that knows his sh.t. It’s not rocket science so doesn’t necessarily need to be the manufacturer that fixes it. Don’t throw it away unless you like to throw away money.
What to do with dead equipment
Hi - I have a Balanced Audio Technologies VK-5i preamp that has been giving me problems. Intermittent hum left channel. I sent it to their repair service and it was re-tubed. Problem continued. They ghosted me. Today upon powering up the preamp made a loud "pop" and blew the left channel of my Balanced Audio Technologies VK-500 amp. It's not the fuse. This stuff worked great for 25 years. But now I'm so done with money for repairs. What do I do with this broken stuff? I'm ready to find a metal recycler or just a land fill.......