I thought that radio looked a bit familiar. I have a small AM/FM replica cathedral radio that looks something like the MW, except for the grille cloth and the shape of the cabinet (the MW set looks like a tombstone; my little set is a replica of a 1934 cathedral).
Tom Bavis's warning against indiscriminately plugging the MW radio into a 117-volt AC wall socket should be heeded, as he is correct. This type of radio is not designed to be powered directly from the AC line; if such is attempted, it will likely burn out not only a tube filament or two, but the rest of the radio will almost certainly be severely damaged if not destroyed as well. These radios, as Tom mentioned, were originally designed to be powered from windmill chargers such as the Zenith Wincharger, but could be operated in a pinch (I would think, anyway) from five six-volt car batteries connected in series (for 30 volts). They could also be powered, as was mentioned, by an external 32-volt supply. Personally, I'd go the external PS route, since using five 6-volt storage batteries is messy and unsightly, not necessarily in that order. Such a lashup is fine for testing, but I wouldn't want this radio in my living room with five car batteries underneath, unless I could somehow hide the batteries--and then there's the acid problem. I wouldn't want to have to worry about electrolyte spilling out of one or more batteries and burning a hole in the carpet, or worse. I wonder how people handled these problems (acid spillage and the looks of the battery) with farm-battery radios that used a single 6-volt tractor battery.
