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This mob is threatening to tear the
          theatre down. We’ve already had a long
          interval.” His last words were lost as I
          reversed and headed back to the Lyric.
            I can’t remember how many trips
          were made that night. What I do
          remember is my determination that in
          future, a more leisurely transfer system
          would have to be the order of the day.  ★

            This is an edited transcript of an
          interview with Harry Leech (then aged
          90) on 7April 2004.

          (1) Mazda produced a 1,000watt
          incandescent lamp for silent 35mm
          projectors, with a (Fresnal) condenser
          lens. The lamps were usually
          convection cooled and only suitable for
          a small theatre.
          (2) Warner’s successful follow-up to
          The Jazz Singer.
          (3) Delivery of bass and treble in the
          1930s was achieved using the principles
          of capacitance and inductance. Two                           By Bert Harris
          coils of copper wire (each an inductor),
          wound around each other on a soft iron
          core form a simple transformer.
          Manually altering the ratio of iron to
          copper could boost treble or bass.
          (4) Locals maintained that the tower
          was originally a convict treadmill, but a
          windmill is more likely.
          (5) In 1933 and 1934, Dr. Val.
          MacDowall and Mr. Tom Elliott made
          low-powered, 30-line television
          transmissions from the Observatory
          tower. They transmitted under the
          amateur call sign VK4CM, held by Dr.
          MacDowall. In May 1934 the system
          was demonstrated to State and Federal
          parliamentarians. Tests continued until
          the late 1930s, by which time images
          were much clearer.
          The Brisbane tests are sometimes
          reported as the first in Australia. In fact,
          similar experiments were conducted in
          Melbourne in 1929.

            Comments on the incandescent
          globe as a light source and modifying a
          transformer were by Ross King. The
          detail about the television experiments
          was by Peter Wolfenden.

                                                       Hoyts pledge; two frames from a 1929 promotion.
                                                       Ross King Collection.

          12  2008 CINEMARECORD
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