bnsf wrote:
You best bet would be to get it touch with Sony Electronic Services. They will help you with any problem wmyou are having with anything electronics like cameras, stereos, phones, lenses, tv's, computers and anything else electronic made by Sony.
Like with old cameras, they are unlikely to have parts available for a 50 year old receiver, and I doubt that anyone in their service center has ever seen one. You can sell it to someone with the skill to troubleshoot it or for parts, but I'll bet it's heavy. Shipping will cost more money than it's worth. See if you can sell it locally if that's where you're going with this.