[captainclock1988]

Couple of options first a 12volt battery. https://www.amazon.com/Miady-Phosphate-R...282&sr=1-9    The second if money is no object.  https://www.amazon.com/Jackery-Portable-...V5A9DKT3PS   Have the jackery 240 nice piece of equipment great for car camping. I can power my radios at the house without having to run the generator during a power outage..

Hi David, I do have one of those portable 5 and 12 volt power supplies, but its strictly for 5V USB Charging and 12v Cigar Lighter charging, as its also a jump starter for your car and an air compressor for your car as well.

Also I figured out who made this radio, it was Arvin Industries of Columbus, Indiana (Noblitt-Sparks), and it was a rebadge of their "Phantom" series Farm Radios Model Numbers 618B, 628, and 638, with various letter designations after the model numbers to designate whether its a Table Model or a floor model.