Show strong battery voltage necessary for speaker many blany good sets fall to deliver sufficient volume on the loud epp alfr he be cause they are not supplied with necessary power to do so forty five volts volta on the plates of the amplifiers will not deliver enough current to the magnets of the loud speaker to produce loud signals ninety volts will give much better re results snIts and Is certainly worth the additional cost an extra grid bazi la Is sometimes n dossary with higher voltage and this la is connected with 4 volt C battery which Is connected between the F post port of the transformer and the tile tho negative terminal of the battery conne connects is to F and the positive terminal to tile the |