A461, AB422/1/1

Frequency modulation

closed

access status

on 1 January 2016
76.36712328767123

years old

based on date of earliest content
yes

in the open period

based on date of latest content
51

years since

the access decision was made
Details as harvested on 1 January 2016
Item barcode 97480
Part of series A461
Control symbol AB422/1/1
Title Frequency modulation
Contents dates 1948 - 1948
Location Canberra
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Why is this file closed?

On 25 September 1973 it was decided that you could not see this file for the following reasons: