COIL, Aerial Tuning No. 2 A. ZA/CAN 4725
First thing this morning, I started cleaning the lower left and right front panel mounting brackets and hardware and get them into the zinc plating bath. Once that was out of the way, I installed the Right Side Mounting Plate to the bottom of the coil case.
In the second photo here, you can clearly see the longer front 8-32 machine screw used at the front of the plate in order to fit the grounding strap. There is a depression in the countersunk ho;e here which gets filled by a flat washer that gets dropped down over the machine screw before the grounding strap is fitted. If that space is not levelled off, the brass grounding strap will get pulled down into the depression when its hardware is run home. Under the stress, the brass strap eventually fails and snaps. The one on this coil. did because no washer had been fitted, but the grounding strap on my parts coil was in perfect shape and had the missing washer.
David
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