Silvertone 6220

[Cruiseomatic]

Just got one of these couple of days ago. Thing looks like it was stored in a barn, Although it looks very clean under the chassis. Rest needs cleaned and re-finished. Can't find nothing but a fuzzy schematic on it. Old farm radio that runs on batteries. Needs an "AB" pack. If I could get the input voltage I could possibly get a power supply to feed it. If anyone knows something, Please let me know. I'd like to get it running soon and add a light to the dial for night operations.