From maillist_arm-netbook at aross.me  Sun Nov  3 01:57:50 2019
From: maillist_arm-netbook at aross.me (Alexander Ross)
Date: Sun, 3 Nov 2019 01:57:50 +0000
Subject: [Arm-netbook] OT: Most of China's (water) pipe made from PVC
 with lead mixed in!
In-Reply-To: <20191028203253.571518e4@Phenom-II-x6.niklas.com>
References: <1f12058f-4600-70f2-7a95-4c814f276a34@aross.me>
	<20191028203253.571518e4@Phenom-II-x6.niklas.com>
Message-ID: <08b6f21b-e790-cc7d-c4f5-2dd93cc13361@aross.me>

On 29/10/2019 12:32 am, David Niklas wrote:
> Second, what's a stabilizer? It seems to me that plastic and metal
> don't mix, but I don't have more then a rudimentary understanding
> of polymers.

https://en.wikipedia.org/wiki/Polyvinyl_chloride


From doark at mail.com  Sun Nov  3 22:55:13 2019
From: doark at mail.com (David Niklas)
Date: Sun, 3 Nov 2019 17:55:13 -0500
Subject: [Arm-netbook] OT: Most of China's (water) pipe made from PVC
 with lead mixed in!
In-Reply-To: <08b6f21b-e790-cc7d-c4f5-2dd93cc13361@aross.me>
References: <1f12058f-4600-70f2-7a95-4c814f276a34@aross.me>
	<20191028203253.571518e4@Phenom-II-x6.niklas.com>
	<08b6f21b-e790-cc7d-c4f5-2dd93cc13361@aross.me>
Message-ID: <20191103175513.529fad7c@Phenom-II-x6.niklas.com>

On Sun, 3 Nov 2019 01:57:50 +0000
Alexander Ross <maillist_arm-netbook at aross.me> wrote:
> On 29/10/2019 12:32 am, David Niklas wrote:
> > Second, what's a stabilizer? It seems to me that plastic and metal
> > don't mix, but I don't have more then a rudimentary understanding
> > of polymers.
>
> https://en.wikipedia.org/wiki/Polyvinyl_chloride

Thanks!


From paul at boddie.org.uk  Fri Nov  8 16:13:51 2019
From: paul at boddie.org.uk (Paul Boddie)
Date: Fri, 08 Nov 2019 17:13:51 +0100
Subject: [Arm-netbook] crowdsupply update 27sep2019 power regulators
In-Reply-To: <CAPweEDwP94AAG7k9DWGQPxG8j5wtG_SprTZDmHQiVYkhMuWjPA@mail.gmail.com>
References: <CAPweEDwfeYFxH_viZuxG9R6GubkYFDOox09oX2WhH5FqptwGoQ@mail.gmail.com>
	<20190928131355.7af100bb@Phenom-II-x6.niklas.com>
	<CAPweEDwP94AAG7k9DWGQPxG8j5wtG_SprTZDmHQiVYkhMuWjPA@mail.gmail.com>
Message-ID: <34202330.gDyfQ6KarL@jeremy>

On Sunday 29. September 2019 01.35.31 Luke Kenneth Casson Leighton wrote:
> 
> Ahh yes. The lovely fraud by china taobao sellers. Crack open the 200uF
> capacitor and it contains a 10uF one inside.
> 
> Mike on the other hand has a solid relationship with his suppliers, one he
> buys a million components a year from.

Has anything else become known about this particular issue? Were the 
regulators the only problem or only the first known problem? I guess travel 
and logistics complicate things here, but I seem to remember it being 
mentioned that replacement regulators were on their way.

Paul

P.S. I hope Canada is working out and is not too cold at this time of year 
compared to your usual places of residence. ;-)

(I read recently that Canada doesn't have mandated national limits for lead in 
public water supplies, which happens to be yet another huge concern for 
marginalised communities, this alongside the matter of multinationals 
apparently taking whatever drinkable water those communities might have had in 
order to sell big-name bottled water to affluent consumers.)


From lkcl at lkcl.net  Fri Nov  8 17:30:44 2019
From: lkcl at lkcl.net (Luke Kenneth Casson Leighton)
Date: Sat, 9 Nov 2019 01:30:44 +0800
Subject: [Arm-netbook] crowdsupply update 27sep2019 power regulators
In-Reply-To: <34202330.gDyfQ6KarL@jeremy>
References: <CAPweEDwfeYFxH_viZuxG9R6GubkYFDOox09oX2WhH5FqptwGoQ@mail.gmail.com>
	<20190928131355.7af100bb@Phenom-II-x6.niklas.com>
	<CAPweEDwP94AAG7k9DWGQPxG8j5wtG_SprTZDmHQiVYkhMuWjPA@mail.gmail.com>
	<34202330.gDyfQ6KarL@jeremy>
Message-ID: <CAPweEDyeVhbPgg3vt8Mdr=fmoz_6npXCiRAq=TjUDRseswLcEQ@mail.gmail.com>

On Saturday, November 9, 2019, Paul Boddie <paul at boddie.org.uk> wrote:

> On Sunday 29. September 2019 01.35.31 Luke Kenneth Casson Leighton wrote:
> >
> > Ahh yes. The lovely fraud by china taobao sellers. Crack open the 200uF
> > capacitor and it contains a 10uF one inside.
> >
> > Mike on the other hand has a solid relationship with his suppliers, one
> he
> > buys a million components a year from.
>
> Has anything else become known about this particular issue?


>
I am in Newmarket, Canada now, I don't have au equipment here.


> Were the
> regulators the only problem or only the first known problem?


You are along the right lines, I don't know. What I suspect is a change in
the design of the SY8008B where it's not switching on because the EN
resistor is 47k.

I need to speak with Mike to ask him to replace it and do remote diagnostics



>  I guess travel
> and logistics complicate things here, but I seem to remember it being
> mentioned that replacement regulators were on their way.
>
> Paul
>
> P.S. I hope Canada is working out and is not too cold at this time of year
> compared to your usual places of residence. ;-)


It's ridiculous. 40C to 4C...


>
> (I read recently that Canada doesn't have mandated national limits for
> lead in
> public water supplies, which happens to be yet another huge concern for
> marginalised communities, this alongside the matter of multinationals
> apparently taking whatever drinkable water those communities might have
> had in
> order to sell big-name bottled water to affluent consumers.)


My friend moved to a place with actual spring water




-- 
---
crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68