Reply to post: Re: Poor instructions

It's round and wobbles, but madam, it's a mouse pad, not a floppy disk

Dave 126 Silver badge

Re: Poor instructions

>What was more interesting is that the number of the 'bumps' was such that when viewed under a bright mains filament light while spinning on the turntable, they should appear static (strobe effect) if the turntable was running at the right speed, but you had to look very hard.

@ 50 or 60 Hz? :) This is why there are four lines of dots on the platter of many turntables: two speeds of records, two common frequencies of domestic AC electricity.

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