Page 3 Advertisement 1

Radio Record, Volume II, Issue 11, 9 November 1928, Page 3

Moving Coil Cone Speakers of the Dynamic Principle The Speakers which have established New Zealand and world-wide reputations in the last two years: RADIOLA 104 (RCA) BTH RK (Rice Kelloggs) (General Electric Cos, U.S.A ) . (British Thomson Houston, England) . Patent Nos. Patent Nos. 231420, 231421, 245796, 260148 and othets. Owing to the now common use of power valves of efficient de- sign in radio receivers the originalpatentees anddesigners have decided to release cone units without the accompanying rather costly combined power amplifier and ABC: elimin- ators. Enquiries should be made to AMALGAMATED WIRELESS (Australasia) LTD: Distributors of RCA. (Radiola): and Marconiphone Equipment; NATIONAL ELECTRICAL ENGINEERING CO. LTD: Distributors for General Electric Cov Ltd: (U.S.A.) , BTH and FADA Equipment