That Arvin looks to have two 50C5s in a P-P arrangement, with those speakers it has it's gonna sound beautiful. I myself have a 60s Arvin "Hi-Fi" radio with PP 6AQ5s, and man does it produce rich, beautiful sound, she actually gives both my Pioneer SX-650 and Sony CMT-BX50BTi mini-system a run for their money.
First time I ever seen a transformerless AC radio with a PP arrangement, let alone using two 50C5s. What's the rest of the tube lineup?