Show rundown B batteries should be replaced even though enough plate voltage Is available to supply tile the receiver good results will not be obtained it if an Over discharged R battery Is in the circuit standard 2212 22 Avolt volt 1113 D batteries that do not register more than 17 volts volta and 45 volt lofta fiatt 0 3 atiat do not register more thau 34 volts may be considered inefficient and should be replaced it if left in the circuit they tire are apt to cause noises to be heard la tile the set |