Eighty-five years ago this month, the July 1941 issue of Radio Craft carried the servicing details for the Crosley model 45BV, the “Commuter.” The four-tube superheterodyne portable ran off one flashlight battery for the filaments, and a 67-1/2 volt battery for the B+.

Speaking of batteries, those would soon become hard to find, as the War took them off the civilian market. We previously mentioned this radio, as it appeared in a 1943 article on battery shortages. In that case, the magazine showed how to make a battery eliminator to run the set at home.