BATTERY POLES.--See Poles, Battery.

BATTERY, PRIMARY.--A battery that generates current by chemical action.

BATTERY, STORAGE.--A battery that develops a current after it has been charged.

BEAT RECEPTION.--See Heterodyne Reception.

BED SPRINGS AERIAL.--See Aerial, Bed Springs.

BLUB BLUB.--Over modulation in wireless telephony.

BROAD WAVE.--See Wave, Broad.

BRUSH DISCHARGE.--See Discharge.

BUZZER MODULATION.--See Modulation, Buzzer.

BLUE GLOW DISCHARGE.--See Discharge.