Here's the amp out of the Arvin and it was made the 31st week of '66. Notice the sloppy repair that was made when replacing the filter caps. They left the old cap in circuit, tied the big cap to the chassis with two bread wrapper ties, and soldered the smaller cap directly to the underside of the PC board. This is also a hot chassis amp and uses those old style electrolytic caps that are almost always bad by now. I also see two black plastic paper caps. And, the transistors were made by RCA. I'll post another picture once I fix it. I'm sure it will look better when I'm done with it.
