YULE CAROLS AT TREE TO BE BROADCAST Broadcasting Station Is Set Up at Lake Merritt Boat House to Spread Noel Cheer Across State ' - V ' Batteries of high-powered high-powered high-powered transformers, transformers, troops of amplifying units, miles of wire, microphones, submarine submarine cables, and loud speakers. speakers. ... - That la the medium through which Oakland will hear the voices of chorus singers, singing Christmas Christmas carols and holy music, when they gather on the shores of Lake Merritt during the evenings of the holiday season. The equipment Is housed in the Lake Merritt boathouse today, and electrical crews are busily engaged in turning the Chinese puzzle into a broadcasting (unit. From the two microphones In the broadcasting studio, the sound will be carried to the "power room," amplified thousands of times, and dispatched over the submarine submarine cable to the float which supports the Lake Merritt Christmas Christmas tree. Four loudspeakers, pointing pointing to each of the fourpoints of tlio compass, will make the sound audible at every point on the lake shore, experts say. The singers and other musicians will be located In a special "broadcast "broadcast studio" in he- he- boathouse: It will he equipped with all the mod-cm. mod-cm. mod-cm. facilities for de-fnJng de-fnJng de-fnJng outside sounds, and hare all the appointments appointments of a modern radio studio, acording to L. II. Qulmby, In charge of the arrangements. It will be occupied on the first night by the Aahmes Chanters, Mies Margaret O'Dea, radio singer, singer, and will be the site of the com mencement exercises, Bedford- Bedford- .W. Boyes, program chairman, announces, announces, . - Mayor John L. Davie has signified signified his Intention to be present and will voice holiday sentiments appropriate to the season. Mr, and Mrs. George A. Hlllback, parents of Bobby Hillback, originator originator of the floating tree Idea, will also be present. Mrs. Hlllback will press the switch that will iignt tne tree for the first time. Hllllinck today contributed $50 to the labor fund lielng collected by William P. tit. Sure, to -further -further -further tho materialization of the. dream of his son, who died last June.