The models 535-GA and 535-GAZ are Table Radio-Phonograph combinations and features of their design include—Tropic- proof construction, automatic volume control, high permeability iron dust cores in I.F. transformers and oscillator coils, air-dielectric trimming capacitors, straight-line edge lighted perspex dial scales. For the reproduction of phonograph recordings, Model 535-GA incorporates the Collaro electric phono-motor and pick-up unit, whilst Model 535-GAZ incorporates the A.W.A. electric phono-motor and pick-up unit. The Collaro and A.W.A. units are Rim Drive Constant Speed Units, which revolve the turntable at a constant speed for all recordings. They are available for both 50 C.P.S. and 40 C.P.S.