I agree with George, Sasa is the go-to guy. If it has a capacitor, diode, etc...he can fix it.
I've been taking my vintage audio equipment to Sasha at all electronics repair for well over a year. He's my go to guy now. Technics, sansui, Akai, Sony, you name it. He has also done some mods to my pro audio recording gear. Very dedicated, great work every time. I suggest you pay him a visit
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