Power equipment at KDKA's new station
Robert L. Davis · Electrical Engineering · 1931
Power for the two new high-power radio transmitters housed in KDKA's new quarters is obtained from a special 1,500-kva. outdoor substation. Included in the power equipment is a twelve-phase, 900-kw., 30-kv., mercury-cathode tube rectifier, the largest of its type yet built for radio.