Re OBM 418, page 28, Pete Kelly’s “Technical Illustrations”.
See photos (above) of the “ingenious” twist-grip dip switch, as illustrated on page 28 of OBM 418 – this one is fitted to my recently acquired 1956 BSA M33.
I thought readers may like to see the actual item as I have never seen another one. This one has a horn button too.
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Dave Baddeley, Crewe
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