DIY Ground Box Thread

[diystereo]

Have you also experimented with reversed polarity?

Never heard of it but it sounds kinda scary and intimidating. What does it entail? Or a link to an online discussion?

I didn't expect the "burn in time" and certainly not this big a level up. I was very happy about the last 2 ground boxes, but this is bigger! Well done diystereo!

Thanks. It was a happy accident, glad to hear it's working out. And yes to the burn in time, for me it was 12 - 24 hours for an even bigger improvement.

Since everybody is confirming the improvement then it leaves me wondering why haven't companies like entreq or synergistic research developed something (a power conditioner) using powerful magnets. And even resources in audio threads to read about the influence of magnets on power transport. I always assumed that magnetic fields hurt anything related to audio but in this case it greatly improved it.

 

[Wladimir]

I have never seen this wire with 19 solid core. But I think you are correct about the 7 bundles of 7 core per bundle. Oops, just checked the actual wire. The recent order I received was for 10m of 2.0mm (14ga.) and it appears to be the 7 bundles of 7 core per bundle.

Pls send me link, where is still that 49core 2mm version, I can't find any and probably I'm not alone.

In my case, when the page said 19core and I didn't pay attention, this is what I got - 19core...
So tested it and it's inferior to the 49 core, especially in the (hyper)space domain.

 

[cdacosta]

Pls send me link, where is still that 49core 2mm version, I can't find any and probably I'm not alone.

In my case, when the page said 19core and I didn't pay attention, this is what I got - 19core...
So tested it and it's inferior to the 49 core, especially in the (hyper)space domain.

This is where I made my last order.

https://www.aliexpress.us/item/2255...t_main.79.68951802KEBUPP&gatewayAdapt=glo2usa

 

[joscho]

Never heard of it but it sounds kinda scary and intimidating.

?? Reverse the polarity of the magnets ??

 

[joscho]

This is where I made my last order.

https://www.aliexpress.us/item/2255...t_main.79.68951802KEBUPP&gatewayAdapt=glo2usa

The OCC 2.0 qmm cable with 7 x 7 strands of 0.2mm diameter each (49 strands total) seems to be unavailable on AliExpress at the moment.

 

[cdacosta]

That is odd, j

The OCC 2.0 qmm cable with 7 x 7 strands of 0.2mm diameter each (49 strands total) seems to be unavailable on AliExpress at the mome

Just looked at the link, that is odd. When I get back home later I can look at the other sellers I have purchased from.

 

[diystereo]

?? Reverse the polarity of the magnets ??

Oh, shows how little I know about electrical engineering, still learning. I thought you meant about the polarity of the power plugs and power supplies. Yes yes, easy enough to flip a magnet around. Right now the south side is facing inwards towards the meter, as in the electroculture experiment. I can flip them where north side is facing the meter.

I'm also watching my power draw from the meter and checking online account with power company the gives me a daily reading of kWh used. Running an experiment today of max usage, oven, drier, washer, lights, computer and see what numbers come up. Those smart meters make me very very nervouse. They do produce a lot RF noise outside the house, which is another pollutant I have to think about. And most importantly, they turn me into a little mouse inside a maze to be studied and documented in binary code. Open the fridge equals 1, close the fridge equals 0, and so on and so forth with every other part of the house in real time...

i just wanna give it a shot specially another big test was, we have a new LTE/4g router and i didnt think about it before, it just came to my mind after the fact but as long we had this 4g router i kinda sleeped pretty bad.

Do you have an indoor smart thermostat with wifi connectivity? I just covered mine up with an aluminum cover.

 

[cdacosta]

This looks like the correct wire. Surprised the other sellers changed the wire, maybe availability?

https://www.aliexpress.us/item/3256...=scene:pcDetailTopMoreOtherSeller|query_from:

 

[Ghoostknight]

Do you have an indoor smart thermostat with wifi connectivity? I just covered mine up with an aluminum cover.

imo wlan devices are not as bad, it also highly depends on how wlan is utilized, will data be constantly sent or not?

what i did, just to minimize variables: disabling 5Ghz support on the router

allowed transmitting power:
2,4ghz - 100mW
5Ghz - under certain conditions 1000mW

you also usually get more range with 2,4ghz (but at lower speeds)

 

[diystereo]

imo wlan devices are not as bad, it also highly depends on how wlan is utilized, will data be constantly sent or not?

what i did, just to minimize variables: disabling 5Ghz support on the router

allowed transmitting power:
2,4ghz - 100mW
5Ghz - under certain conditions 1000mW

you also usually get more range with 2,4ghz (but at lower speeds)

That's helpful advice. I didn't know you can turn of 5Ghz. I'll look into it. Thanks.

 

[cdacosta]

Doug mentioned Oyaide NRF-005T non-magnetic Noise Suppression Tape to me when it came out. Recently @Wladimir mentioned he uses it on his ground cables. I have an order coming tomorrow according to FedEx. Anyone try this tape material and found good use for it? I have seen it used on caps, chips and cable ends.

https://shop.oyaide.com/products-nrf-005t.html

 

[basillus]

This looks like the correct wire. Surprised the other sellers changed the wire, maybe availability?

https://www.aliexpress.us/item/3256806808173250.html?spm=a2g0o.detail.pcDetailTopMoreOtherSeller.2.55d2mT6GmT6GV6&gps-id=pcDetailTopMoreOtherSeller&scm=1007.40050.354490.0&scm_id=1007.40050.354490.0&scm-url=1007.40050.354490.0&pvid=579cbf56-2c08-48af-96ad-54aa0f65e028&_t=gps-idcDetailTopMoreOtherSeller,scm-url:1007.40050.354490.0,pvid:579cbf56-2c08-48af-96ad-54aa0f65e028,tpp_buckets:668#2846#8115#2000&pdp_npi=4@dis!USD!10.19!10.19!!!71.82!71.82!@2103273e17286169308095206ee6da!12000038983950487!rec!US!2108204459!XZ&utparam-url=scenecDetailTopMoreOtherSeller|query_from:

I have just received my 10m 2.0 square from preffair store here:
https://www.aliexpress.com/item/100...der_detail.order_detail_item.3.5fadf19cR1kHbr

I just looked at the pictures, there shows 7 bundles with 7 cores=49cores, before ordering and have received a 19 cores version.
So it’s looks like that the pictures shows “the Old version with 49 cores” and You will receive the 19 cores version when the text shows (19Core). So it’s a bummer…sigh.

 

[Ghoostknight]

Doug mentioned Oyaide NRF-005T non-magnetic Noise Suppression Tape to me when it came out. Recently @Wladimir mentioned he uses it on his ground cables. I have an order coming tomorrow according to FedEx. Anyone try this tape material and found good use for it? I have seen it used on caps, chips and cable ends.

https://shop.oyaide.com/products-nrf-005t.html

definitely report back on some tweaks seems like this material (PULSHUT) filters stuff out in the GHz range, its not like ferrite

wondering what it does wrapped around cable ends (specially like XLR and Cinch)
in theory emi/shield tape should do really nothing here, unless you shield off an unshielded connector or such

on chips i could imagine some simple EMI "shield" tape already gives like 80% of the benefit for a fraction of the price

 

[cdacosta]

definitely report back on some tweaks seems like this material (PULSHUT) filters stuff out in the GHz range, its not like ferrite

wondering what it does wrapped around cable ends (specially like XLR and Cinch)
in theory emi/shield tape should do really nothing here, unless you shield off an unshielded connector or such

on chips i could imagine some simple EMI "shield" tape already gives like 80% of the benefit for a fraction of the price

I will find out soon what it will or can do. According to Oyaide this non-magnetic tape unlike the Oyaide MWA EMI tape, will not effect the signal. Will take notes and report back what I hear.

 

[Ghoostknight]

I will find out soon what it will or can do. According to Oyaide this non-magnetic tape unlike the Oyaide MWA EMI tape, will not effect the signal. Will take notes and report back what I hear.

yea ferrite alters impedance and "pulshut" doesnt seem to behave like that, so interesting what it does audibly, if you can hear the GHz filtering effect without negatives etc...

i use on my XLR cables currently one ferrite clamp per end, but also i can tell its a bit of a compromise, but imo just using a few ferrites gives more benefit (noise filtering) than negatives (audible reduced highs for example)