TO REPLACE BATTERIES Unscrew the two bolts holding the loop to the chassis and loosen the metal bar holding the "B" batteries in place. Pull the battery out and replace new batteries in the same relative position. Use 2 Eveready # 746 (or equivalent) and 2 Eveready # 482 " (or equivalent)

Batteries are considered to be poor or defective when they measure 1/3 less terminal voltage than the normal voltage than the normal value thus the 90 volt "B" batteries should read better than 60 volts and the 9 volts "A" batteries should read better than 6 volts. These voltage measurements are to be taken after the set has been playing in the battery position for approximately one quarter hour. Use a voltmeter with low drain to read voltages (a 1000 ohm per volt meter or better)

TO OPERATE THIS SET ON A 120 VOLT POWER LINE.

Disconnect the set from the power line. Take voltage selector plug (behind loop under loop mounting bracket) and insert into the 120 volt jack (red).

TO OPERATE THIS SET ON A 220 VOLT POWER LINE Disconnect the set from the power line. Take voltage selector plug (hehind loop under loop mounting bracket) and insert it into the 220 volt jack (red.). CAUTION: NEVER PLUG THIS SET INTO A 220 VOLT POWER LINE WIEN THE VOLTAGE SELECTOR PLUG IS IN THE 120 VOLT POSITION (BLACK JACK) OTHER WISE PERMANENT DAMAGE WILL RESULT. DO NOT CUT THE LINE CORD OR OTHERWISE CHANGE IT'S CHARACTERISTICS OR DAMAGE WILL OCCUR. DO NOT CHANGE TUEES WHILE THE SET IS TURNED ON SINCE DAMAGE CAN BE CAUSED BY SO DOING.