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Survival Tips, Prepper Guides, Gear Reviews

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    Protection devices for lithium-ion Li-ion batteries, protection schemes for voltage, against deep discharge, temperature, threshold pressure level inside the case.

    23.08.2017Category: Prepping Basics 0

    Commercial lithium-ion batteries have the most advanced protection among all types of batteries. This level of protection for lithium-ion Li-ion batteries is due to the fact that, being…

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    One-tube and two-tube radio receiver, design, parts, circuit diagrams, wiring diagrams, power supply, radio tube pinout.

    31.07.2017Category: Prepping Basics 0

    A simple single-tube radio is designed for radio stations operating in the medium (200-500 meters) and long (800-2000 meters) wavelengths range. Tuning to radios is done by a…

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    Home-made unloading reversible electric traps for traps, design and installation features.

    07.04.2017Category: Prepping Basics 0

    Unloading reverse electric closures are the opposite of electric closing clamps. Arranged almost the same, but they work when the load is removed from the contactor, under the…

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