 The first, KWJB/KZOW, operated from 1938 to 1960, when the impending revocation of the licenses of all stations owned by Gila Broadcasting forced the chain to shut down.The second, KWJB/KPPR, operated between 1969 and approximately 1978.In 1978, James Mace, who had owned the second KWJB before selling it in 1975, made an application to rebuild 1240 on a new license after KPPR's demise.