Trying to find a DC negative ion generator in the 15kV range for a project. Electronic goldmine used to carry them, but they no longer do. Here's a link to an AC version the dc version they had was ...
A standard part of travel kit for the 2020s is now a battery pack — a hefty lithium-ion cell with onboard electronics for USB charging, that ensures all of our devices stay topped up while we’re out ...
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