Search found 2861 matches

by jack
Thu Oct 18, 2018 1:54 am
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 9857
Views: 551361

Re: Nothing In Particular

Very nice image. One of my colleagues here swam from there to North Africa. Twice. The first time he got to a mile offshore and the tide changed so he had to go back. Tried again a week later and landed ok. Madness. He was also one of the Bosphorus swim group. Never landed there - sailed past it tho...
by jack
Mon Oct 15, 2018 8:21 pm
Forum: Assorted Stuff
Topic: Grounding boxes ?
Replies: 23
Views: 593

Re: Grounding boxes ?

Dude I have never made claims about these boxes, if you want to dig deeper ask the guy who makes them. From your website: https://mcru.co.uk/product/cad-gc1-ground-control/?v=ea8a1a99f6c9 THE CAD GROUND CONTROLS WILL SUBSTANTIALLY REDUCE NOISE FROM VERY HIGH KHZ RANGE UP TO OVER 10 GHZ. NB: Quoted ...
by jack
Mon Oct 15, 2018 2:09 pm
Forum: Everyones Projects
Topic: Transcendent Mini Beast Build
Replies: 37
Views: 746

Re: Transcendent Mini Beast Build

Very nice & neat indeed !

I worked out that 1W / year is just over 1 quid

So to run this 24/7 would cost around GBP 310 (but would cut down on the heating somewatt)
by jack
Sun Oct 14, 2018 8:57 pm
Forum: Assorted Stuff
Topic: Grounding boxes ?
Replies: 23
Views: 593

Re: Grounding boxes ?

Dave the bass wrote:
Sat Oct 13, 2018 9:22 pm
Special is good :)
We all know that you're special, Dave. We've known for years :)
by jack
Sat Oct 13, 2018 8:02 pm
Forum: Assorted Stuff
Topic: Grounding boxes ?
Replies: 23
Views: 593

Re: Grounding boxes ?

Not quite true. You make claims about effects into the GHz range and reduction of noise, but don't or can't back it up with solid evidence. I've never disputed that some people believe that they can hear a difference, it's the basis for the claims that I'm trying to understand. That's the weird thin...
by jack
Sat Oct 13, 2018 9:55 am
Forum: Assorted Stuff
Topic: Grounding boxes ?
Replies: 23
Views: 593

Re: Grounding boxes ?

The problem I see with measuring the noise floor and any change is what do you use as a reference? That was my underlying point. The only reference would be a genuinely clean ground, but how do you know that? If the noise on the ground or earth is common mode with the associated power rail, cleanin...
by jack
Sat Oct 13, 2018 2:38 am
Forum: Assorted Stuff
Topic: Grounding boxes ?
Replies: 23
Views: 593

Re: Grounding boxes ?

Doubt it, if so make one for us all for a tenner I will have 1 Obviously my comments related to the Entreq Tellus, but there were only in10 quids worth of bits in there. Yes, your one has an acrylic case which I doubt affects the supposed performance of the unit, so perhaps I should have said "10 q...
by jack
Thu Oct 11, 2018 6:56 pm
Forum: Assorted Stuff
Topic: Food complaints ?
Replies: 4
Views: 134

Re: Food complaints ?

Need evidence. Lots of it. The wrapper (for batch number), the receipt (proof of purchase).

Time & date. Preferably a sample of said pasty (freeze it)
by jack
Thu Oct 11, 2018 1:41 pm
Forum: Assorted Stuff
Topic: Grounding boxes ?
Replies: 23
Views: 593

Re: Grounding boxes ?

The puff on MCRU's site suggests that it just absorbs HF on the Earth or whatever. Not at all sure how it does this if there's no reference point, i.e. if it's just a box at the end of a bit of wire with no current flow, IMHO it whiffs of snake oil, otherwise it's basically an LPF. https://mcru.co.u...
by jack
Thu Oct 11, 2018 9:30 am
Forum: Assorted Stuff
Topic: Grounding boxes ?
Replies: 23
Views: 593

Re: Grounding boxes ?

I believe these are similar to the Entreq Tellus The stuff inside looks very like Specular Haematite (also known as Specularite) grit - used in shot-blasting and elsewhere - plus some copper sheet & wire, a few brass strips and a couple of lumps of steel bar. All very crudely put together with a nic...
by jack
Mon Oct 08, 2018 6:09 pm
Forum: Assorted Stuff
Topic: Computer security issue. Should we be worried?
Replies: 6
Views: 160

Re: Computer security issue. Should we be worried?

I'm happy to talk offline about detail around this, but its not for public consumption.
by jack
Mon Oct 08, 2018 2:46 pm
Forum: Assorted Stuff
Topic: Computer security issue. Should we be worried?
Replies: 6
Views: 160

Re: Computer security issue. Should we be worried?

Btw, the short answer is that on a personal level, no.

But on a business level, especially if you're in a commercially or politically sensitive area, yes.
by jack
Sun Oct 07, 2018 8:33 pm
Forum: Assorted Stuff
Topic: Computer security issue. Should we be worried?
Replies: 6
Views: 160

Re: Computer security issue. Should we be worried?

Only governments and huge corporations like Google & Amazon etc. have the time, money and resources to analyse motherboards like this. Do you check every board? Interestingly, we take a lateral thinking approach - we can't analyse every (or any) motherboard, but having very very clever AI network an...
by jack
Sun Oct 07, 2018 12:06 pm
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 9857
Views: 551361

Re: Nothing In Particular

Great read. Cunning supply chain hack. Lenovo share price down 20% (15% today) and ZTE heavily down too (50% since July). SuperMicro fell off a cliff and have lost about 45%. FYI – Summary is that in a clever supply chain hack, SuperMicro (and possibly Lenovo & ZTE) introduced extra monitoring chips...
by jack
Tue Sep 25, 2018 1:38 pm
Forum: Assorted Stuff
Topic: The Audio-Talk Cycling thread.
Replies: 1669
Views: 95739

Re: The Audio-Talk Cycling thread.

A while since I contributed anything worthwhile to this, so here goes: Last weekend (Saturday morning) a mate & I did the "al Qudra" loop - this is proper tarmac track laid out in the desert - you see Oryx and eagles & stuff... and sand. A lot of sand. Every night some poor sods in little road sweep...