[jerryhawthorne]

Chris, that is a nice looking radio and that cabinet will clean up like new with a little gojo cream cleaner (not the stuff with abrasives) and a little wax or something like Howards restorer.
I looked at the schematic for your radio and with my bad eyes have not determined what the the high voltage (B+) is. The low for the filaments is no doubt just 1.5V. Most were 90V. Someone may comment on this that is smarter than me. That would include everyone.
The "battery" note the quotes, is not really a battery but a power supply in a replica battery case. You might notice the A/C cord coming out of the back of the radio and an in-line switch to turn the supply off and on. I just leave the radio off/on switch on at all times and when I want to play the radio, I just turn the in line switch which goes to a normal wall plug to on.
One has a choice of an A/C power supply or stacking a bunch of little batteries together. I liked the A/C supply as I hate changing batteries. Depends a great deal on how much time you wish to run the radio.
As for streaming music to the radio, options such as adding an input jack for your computer or ipod, or perhaps a small home transmitter to "broadcast" your music choices throughout the house.
Your radio, running off of batteries originally will probably work without and lot of renovation under the chassis. It just needs a power source. Most were retired not because they died but because the house they lived in received A/C power. They bought a radio that would work off A/C.
Hope that makes sense.
I hope you realize that radio will pick up next to nada unless hooked to a fairly long wire for the antenna for local radio stations. Depending on your location. Major area of stations on AM, 6 feet or so. Boonies, a bunch more.

Jerry