What constitutes a grounding box?

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It is easy to scoff when we have no direct experience of the quantum world.

The quantum world keeps getting bigger. A recent experiment on crystals made from 10 billion atoms proves that even large objects follow the weird rules of quantum mechanics.

Vibrating crystal made of 10 billion atoms smashes quantum record | New Scientist

A ground box may function on the principle of quantum entanglement whereby the properties of the electrons within the chassis of the connected equipment are linked with the properties of those within the ground box crystals.

If the owner determines that the crystals within the ground box have a measurable state of stability then, by some spooky action at a distance, that stability will be transferred to the electrons within the equipment chassis.

Bell's Theorem provides a standard test for the existance of entanglement, as outlined in the attached diagram where H represents the ground box and BS represents the Bull **** detector.
 

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Back in '89, I was working for a mfr in the LA area; on April 1st, a well know company that makes anti-static equipment (AS mats for benches, wrist straps for techs, AS trays for ICs, etc.), circulated a nice glossy data sheet for a "portable ground device", complete with some slick photos and bullet points for all the benefits. It was a 1 pint mason jar filled with dirt, a metal probe sunk into it and a coiled cord with alligator clip attached. You had your choice of where the dirt came from (Arkansas, Kentucky, Tennessee etc.).

They had another glossy data sheet for a "Static Stake" for grounding the technician to his bench area, which was essentially a chrome plated tent stake about a foot long; you drove the "Static Stake" through the tech's foot and into the ground. One of the added benefits they claimed was that it stopped technicians from wandering off during working hours.

Maybe someone took them seriously and started their own company to make competing products?
 
I spotted one for sale and decided that I could make one for little more than the cost of a shiny connector. It was just a little coal bunker with a bit of copper in it. I can get plenty of well weathered coal from the leftovers of a local now closed coal mine. There are plenty of pallets about for the wood to make the box.
 

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I remember seeing these boxes a few years back. Rather than dismiss them I thought about the possible benefits - any benefit has some worth to a customer and value-for-money is in the eye of the beholder.

The main benefit I saw was the creation of a system level star ground, which, if done well (key) can clean up ground loops and their relatives. Side benefits include enforcing some discipline in terms of system set up and likely implies the owner will be fussy about it. More contentiously, the owner may feel happy/satsfied, even if it’s a placebo this alone is valid.

It looks like an ideal candidate for DIY. A grounding box needs weight so that it will not get dragged around by the cables, so a box of metal and dirt should work admirably. Good quality connectors which are suitably anchored to each other through low impedance, a chunk of metal serves that need too. I’d want to have a safety earth too, clearly marked as such, perhaps already existing in the system in a commercial box.
 
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From a DIY perspective a low cost option for doing your own experiments would be to rescue an old HT receiver or tv box from the e-waste that already has some suitable connectors. Use some thick copper wire to join the connectors together. Seal holes in the box with sonething suitable - duct tape is hand - and add your choice of filler ‘dirt’.
 
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