Remember that $150 can get you a receiver, but whether it is in decent electric condition might be a different story. I got one for $135, a HK Twin Transformer 430? I cannot recall the exact designation, but I sent it to a specialist for an electrical overhaul. It should last another 26 years, without much of a problem. That job was quite an expense in contrast to what I paid for it originally.
Vintage silver Yamahas, ah, they look beautiful, nice back lighting.