[Arran]

There were a few books put out back in the day to identify various makes and models of radio by the layout of the tube sockets, and the types. I think I may have a reprint of one somewhere, but there used to be a web page where you could do this.Regards An alternative may be to try looking up Gilfillan Brothers sets on Nostalgia Air, Gilfillan was an RCA licensee so they made a lot of their money renting out parts of their plant to smaller manufacturers who wanted to use their license. The tube/valve lineup is a bit strange in that an 0Z4 is an octal based cold cathode, gas rectifier, all the others have the old style bases.
Regards
Arran