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Of late, the magnetic stirrer mixing my morning cocoa occasionally doesn’t start spinning when I turn it on, which calls for some investigation. Removing the four obvious screws concealed under the rubber feet and prying off bottom cover reveals the trivial innards: The speed adjustment pot holds the little circuit board in place, with the…
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Each one has a brass tube to define the dot and a white plastic diffuser to eliminate hotspots.
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It seems I ain’t worth a damn in the morning without a hot cuppa.
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Perhaps the defrost cycle hadn’t started yet?
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So a reasonable thing to do is buy raw cells from a nominally reputable supplier, do a heart transplant, and see if that improves the situation.
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Frankly, I didn’t expect much and here’s the discharge test graph to show I wasn’t disappointed.
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Show me an order of magnitude
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A recent power outage killed the regularly scheduled events, which suggested that the backup batteries needed changing…
The Smell of Molten Projects in the Morning 