In each county having a population of 210,000 inhabitants and less than 220,000 inhabitants, as determined by the 1950 federal census, the judges of the superior court of such county, a majority concurring, to assist the court in the transaction of the judicial business of such court, by having performed the duties of phonographic reporters as elsewhere in this code defined, may appoint as many regular official phonographic reporters as may be necessary to report the proceedings in such court and to perform such duties, except that the number of reporters so appointed shall equal the number of offices of judge provided by law for such court. Such reporters shall hold office during the pleasure of the judges of such court, a majority concurring.