Here's the schematic. Click on the "eyeball" to open.
http://www.nostalgiaair.org/resources/783/M0014783.htm
The radio takes a special tapped volume control/power switch which is a tone compensator, boosts bass at lower volume. Playthings of the Past might have such a control, or Mark Oppat of Old Radio Parts. If you can't find one, you can just ignore the tap and the control will work like an ordinary one. RCA made a number of similar 6 or 8 tube sets around this time: they are good performers.