With this circuit, any type of LED can be driven from a single-cell supply in the range of 1.0 to 1.5 V (see the figure). As a result, it can be used with alkaline, carbon-zinc, NiCd, or NiMH cells ...
We may receive a commission on purchases made from links. Camping or hiking can be a great way to catch a break, but you'll want to ensure you're adequately prepared for the wilderness by carrying a ...
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