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Sparks · 10th Jul 2017, 6:12 pm

Thanks everyone. I uncovered one still in place in an old 746 - appears to be used as a recall button.

10th Jul 2017, 6:12 pm	#6
Sparks Heptode Join Date: Oct 2006 Location: Leeds, West Yorkshire, UK. Posts: 597	Re: Mystery switch Thanks everyone. I uncovered one still in place in an old 746 - appears to be used as a recall button.