The wireless battery charging circuit is separate from the main vehicle circuit and is fed through the rotary base junction to the batteries under the basket floor. The hole in the bracket is for a dowel in the CAV dynamo casing to locate it in the correct position, same on other vehicles of the period.
Here is part of the circuit diagram;
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Richard
1943 Bedford QLD lorry - 1941 BSA WM20 m/cycle - 1943 Daimler Scout Car Mk2
Member of MVT, IMPS, MVG of NSW, KVE and AMVCS
KVE President & KVE News Editor
Last edited by Richard Farrant; 16-11-17 at 23:17.
Reason: added more info
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