Coil, Aerial Tuning No. 2 A Front Panel Grounding Strap
This is another unrecorded 52-Set item in the Parts Lists, so I thought it should be documented here as much as possible, in case somebody ever needs to fabricate a replacement.
It is made from 0.035 inch thick brass sheet and has been plated with zinc, or cadmium, upon completion. The basic form is an L-Shape, punched from the brass sheet. The main body is 3/8-inch wide and 1-9/16 inches long. The foot of the “L” is also 3/8-inch wide and 13/16-inch long. At the inside junction of the “L”, a 1/16-inch wide notch has been punched 3/16-inch into the main body. This has been done to allow the outer 1/2-inch of the foot to be bent upright 90 degrees at a very sharp angle, without tearing or warping the brass sheet.
The hole in the base is 3/16-inch in diameter, centred 1/4-inch from the end. The hole in the foot tab is 5/32-inch in diameter, centred 3/16-inch from the end of the tab.
The first photo shows this grounding strap sitting as it does when fitted into the coil case. The second photo is the ground strap simply tipped over onto the foot tab.
David
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