VK7WI Northern Radio Exhibition

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OCTOBER Ist, 1939

AMATEUR

RADIO W

VK7WI

During the Radio and Electrical
Exhibition held in Launceston dur-
ing June, the Northern Zone of the
WIA, Tasmanian Division, with
VKT7WI were responsible for a con-
siderable amount of interest being
aroused in Amateur Radio.

The display centred around an
actual amateur station in operation,
and exhibits of typical amateur ap-
paratus constructed by 7CL, 7KR,
7CJ, 7LG, 7GJ, 7LZ, and 7BQ ar-
ranged on a stand in front of the
working exhibit. A large size map
of the world was shown with tapes
leading down from several rare
countries to their respective cards
on one end of the stand.

VK7AB was the station used under
the call sign of 7WI. The transmit-
ter consisted of an EL5 tritet crystal
oscillator capacitive coupled to an
807 and link coupled to an Eimac
35T running at an input of 50 watts
and modulated by a pair of Osram
PX 25’s in Class AB push pull.

The receiver was a normal 10 tube
super and the antenna a full wave
40 metre zepp.

All costs of installation were borne
by the Launceston City Council,
who gave us every assistance pos-
sible, and erected a very fine an-
tenna.

Ameoteur Radio VK7WI as in operation from the