Instrument is a Geonics EM16 VLF receiver, using in the mineral exploration industry to find buried linear conductors.

  • Troy@lemmy.caOPEnglish
    3·
    1 month ago

    These batteries are in a circuit which has a physical power switch separating it from the device, meaning there should be zero parasitic drain while off.

    Thus I conclude your fun fact to be apocryphal.