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Remember what I said about ABC and redundancy? Some desk jockey decided that it would be a good idea for WLS to have not one but two antenna-tuning units, with a transfer switch to choose between. Of course, it never occurred to him that the mutual inductance of the two units in a small ATU shack would render the exercise pointless, and in any case these sorts of components rarely if ever fail, so the transfer switch was removed and this ATU physically disconnected.
Copyright 2004, Garrett Wollman. All rights reserved. Photograph taken 2004-07-06.