That is a Nylint toy truck made in Rockford, IL and the radio is indeed a Philco as it says right on one of the knobs. It was apparently a dealer promo model.

Here is a great website on Nylint and other metal toys and the page here is the one with your camper (second from the top): http://www.tnttoytrucks.com/NYF-SPU2.html

Nylint was famous in the 60's for their copies of Ford trucks and U-Haul equipment. They abruptly shifted to Chevy in the early 70's. I had a bunch of Nylint toys as a kid and loved them.