Zenith Farm Radio

[dewickt]

Or you pulled the battery out of the tractor to run the radio, with most tractors you had a crank to start it if the battery was dead when you put it back in.
A 6V vibrator radio can be converted to 110V with a 6.3V @10A filiment transformer, jump out the vibrator and feed the radio with AC, the vibrator transformer was made for 100Hz from the vibrator and should work at 60Hz with no problem.