[?] Freshman Mystery Set

Radio Record, Volume II, Issue 32, 22 February 1929, Page 8

[?] Freshman Mystery Set

Reutereed bw

Observer

A’ NEW line on the New Zealand market is the Freshman type of ‘A.G. radio sets. They are well-known in America, but up to the present time we have seen little or nothing of them on the New Zealand markets. The model that has now made its appearance is the 8Q-15, and the agents handling this very fine model are Messrs. Royds-Howard, Christchurch. The neat little cabinet-for its overall dimensions are not greater than 20in. x 10in-houses four valves, ineluding a screen grid. A demonstration was recently given the writer, and the set operating without an earth brought in Wellington in the centre of Christchurch with beautiful tone and volume. The set operates directly om any light socket and no batteries of any description are required. The receiver has several unusual features. A rather surprising feature is that a sereen grid is used in an 1.0. set. This is not the A.C. type og screen grid which is hardly past the laboratory stage in America. By ingenious wiring, the power pack is made to supply direct current to the filament of this valve which is the ordinary screen grid type, in this case the 222. The power valve is of the 171 type, which will supply an exponeatial or dynamic cone with ample volume. The set is. distinctly selective, and has a toning range from 190 to 570 metres. This is an unusually wide range, and should bring in additional New Zealand stations that are operatirg just below the ordinary wave length. Full wave rectification is accomplished by means of.a filament type rectifier. Single dial control with a balancing condenser is employed.