Dominion Radio & Electrical formed in 1939 with a staff of just 4 to produce Philco radios in New Zealand (which had previously been imported by Chas Begg and Co). By 1954 they had outgrown their premises and a purpose-built factory was errected on a 6-acre site in Otahuhu. In 1959 they merged with (absorbed?) Russell Import Co. who were importers and distributors of appliances (notably Morphy Richards), musical instruments and radio / electronics equipment.
Philco: New Zealand versions of Philco models started off quite similar, but over time the electronics (if not the cabinets) became distinctly NZ designed. Part of this was probably because US mains voltage was 110-volt and transformerless or series-string set became quite popular (where the heaters of specially designed valves would be strung together and would add up to 110 volts, meaning a transformer was not needed for the heaters), but NZ's 230-volt mains system was not readily suitable for this technology, although some manufacturers tried (Philips being the main offender).
With the 1961 sale of Philco USA to Ford the former agreement with DRECO lapsed and this led to the end of the Philco brand in NZ.
La Gloria: In 1956 DRECO introduced the La Gloria brand name (which had been used by the managing directors father years earlier in his K-Road business, La Gloria Gramophones) to market a budget line of radiograms and appliances - and this name took over from Philco within a couple of years.
In around 1974, in an effort to create an economy of scale for manufacturing in the television era, Dominion Radio & Electrical merged with Bell Radio/Television Corp. to form Consolidated Electrical Industries Ltd. This operation, like so many other casulaties of in the NZ electronics industry from cheap imported products, ceased production around 1980.