Summary

This is one of a series of photographic material in print, negative and/or digital formats covering CSIRAC machine and the people associated with it. The series was acquired from the University of Melbourne in 2003.

Description of Content

Ron Bowles adjusting Main Clock frequency; Herald-Sun photo 15 June 1956. TThe frequency of the oscillator could be manually adjusted to the centre of a set range by the maintenance engineers by adjusting the main oscillator control whilst observing the timing relationships on an oscilloscope.

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