Re: Surplus electricity

From	"Edward Rawde" <invalid@invalid.invalid>
Newsgroups	sci.electronics.design
Subject	Re: Surplus electricity
Date	2026-04-01 12:35 -0400
Organization	BWH Usenet Archive (https://usenet.blueworldhosting.com)
Message-ID	<10qjhh6$1mc0$1@nnrp.usenet.blueworldhosting.com> (permalink)
References	(9 earlier) <10qfl5l$326de$1@dont-email.me> <10qhp79$2guc$1@nnrp.usenet.blueworldhosting.com> <10qi7cg$3tkci$2@dont-email.me> <clkpskd5k4v8sga5v32elvhlr1ubq2bell@4ax.com> <10qjddp$ad1m$2@dont-email.me>

Show all headers | View raw

"Bill Sloman" <bill.sloman@ieee.org> wrote in message news:10qjddp$ad1m$2@dont-email.me...
> On 1/04/2026 7:10 pm, john larkin wrote:
>> On Wed, 1 Apr 2026 15:36:25 +1100, Bill Sloman <bill.sloman@ieee.org>
>> wrote:
>>
>>> On 1/04/2026 11:34 am, Edward Rawde wrote:
>>>> "Bill Sloman" <bill.sloman@ieee.org> wrote in message news:10qfl5l$326de$1@dont-email.me...
>>>>> On 31/03/2026 2:09 am, john larkin wrote:
>>>>>> On Mon, 30 Mar 2026 14:47:41 +1100, Bill Sloman <bill.sloman@ieee.org>
>>>>>> wrote:
>>>>>>
>>>>>>> On 30/03/2026 3:10 am, Edward Rawde wrote:
>>>>>>>> "Bill Sloman" <bill.sloman@ieee.org> wrote in message news:10q7ltu$atug$1@dont-email.me...
>>>>>>>>> On 28/03/2026 5:43 am, john larkin wrote:
>>>>>>>>>> On Sat, 28 Mar 2026 01:55:01 +1100, Bill Sloman <bill.sloman@ieee.org>
>>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>>> On 27/03/2026 10:24 pm, john larkin wrote:
>>>>>>>>>>>> On Fri, 27 Mar 2026 15:19:29 +1100, Bill Sloman <bill.sloman@ieee.org>
>>>>>>>>>>>> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> On 27/03/2026 1:48 am, john larkin wrote:
>>>>>>>>>>>>>> On Fri, 27 Mar 2026 01:25:09 +1100, Bill Sloman <bill.sloman@ieee.org>
>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> On 26/03/2026 8:48 pm, john larkin wrote:
>>>>>>>>>>>>>>>> On Thu, 26 Mar 2026 16:51:54 +1100, Bill Sloman <bill.sloman@ieee.org>
>>>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> On 26/03/2026 6:38 am, Phil Hobbs wrote:
>>>>>>>>>>>>>>>>>> On 2026-03-25 12:17, john larkin wrote:
>>>>>>>>>>>>>>>>>>> On Thu, 26 Mar 2026 01:28:35 +1100, Bill Sloman <bill.sloman@ieee.org>
>>>>>>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> On 26/03/2026 1:10 am, Ross Finlayson wrote:
>>>>>>>>>>>>>>>>>>>>> On 03/25/2026 04:21 AM, Bill Sloman wrote:
>>>>>>>>>>>>>>>>>>>>>> On 25/03/2026 6:14 pm, Ross Finlayson wrote:
>>>>>>>>>>>>>>>>>>>>>>> On 03/24/2026 09:21 PM, Don Y wrote:
>>>>>>>>>
>>>>>>>>> <snip>
>>>>>>>>>
>>>>>>>>>> The subject was and is film caps. They use aluminum or zinc or combo
>>>>>>>>>> metalizations. Many atoms thick. Look it up.
>>>>>>>>>
>>>>>>>>> Where? I could do it for myself,
>>>>>>>>
>>>>>>>> For those who aren't convinced that Bill knows enough about search to
>>>>>>>> provide suitable links:
>>>>>>>>
>>>>>>>> https://www.google.com/search?q=metallized+film+capacitor+construction&udm=2
>>>>>>>>
>>>>>>>> https://www.google.com/search?q=metallized+film+capacitor+construction&udm=14
>>>>>>>>
>>>>>>>> https://www.google.com/search?q=metalized+film+capacitor+film+thickness&udm=14
>>>>>>>>
>>>>>>>> As a side note, someone made this:
>>>>>>>> https://udm14.com/
>>>>>>>> But I doubt that that will last many years.
>>>>>>>
>>>>>>> The basic question was whether the metalisation was any thicker than
>>>>>>> that required to get more than one atom thickness at the thinner points,
>>>>>>> and none of your links seem to answer that explicitily.
>>>>>>
>>>>>> The basic google query says
>>>>>>
>>>>>> AI Overview
>>>>>> Comparison of Metallized Film Capacitors and Film/Foil ...
>>>>>> Film capacitor metallization typically involves an ultra-thin layer of
>>>>>> aluminum, zinc, or an alloy, measuring roughly 0.02 to 0.1 ?
>>>>>>
>>>>>>>
>>>>>>> There was some emphasis on the self-healing properties of very thin
>>>>>>> films - when the there is an arc you want it to be able to vapourise all
>>>>>>> the metal in the vicinity without getting the film hot enough to get
>>>>>>> carbonised into a state where it too can conduct - but no discussion of
>>>>>>> metalisation  thickness as a pile of atoms.
>>>>>>>
>>>>>>>>> but if you want to pose as an expert, here's your chance to shine.
>>>>>>>
>>>>>>> You didn't shine.
>>>>>>
>>>>>> The self-healing caps usually have a geometric pattern of square cap
>>>>>> regions connected by tiny fuses. Those are usually made with
>>>>>> aluminum/zinc composite layers.
>>>>>
>>>>>
>>>>> back when I first learned about them - back in 1970 - they didn't.
>>>>>
>>>>> The wikipedia article you are presumably relying on does talk about "T-shaped sections" for specialised applications, but 
>>>>> doesn't
>>>>> suggest that this is what is usually meant.
>>>>>
>>>>> https://en.wikipedia.org/wiki/Film_capacitor
>>>>>
>>>>>> You are allowed to look that up and learn.
>>>>>
>>>>> I make a habit of it.
>>>>
>>>> Except in this case where you are clearly unable to do so.
>
> More unwilling than incapable. Educating you is a thankless task, in large part because you don't show any sigh of getting 
> educated by exposure to more detailed information.
>
>>>> https://www.google.com/search?q=aluminium%2Fzinc+composite+capacitor+film&csuir=1
>>>>
>>>> If the AI summary doesn't appear click AI mode.
>>>
>>> This is actually the informative link.
>>>
>>> https://www.capacitorconnect.com/what-are-different-types-of-metallization-used-in-capacitor-films/
>>>
>>> It seems that in some applications it is worth putting down an initial -
>>> very thin layer of aluminium to give a somewhat thicker layer of zinc,
>>> something that is easier to bond to than bare plastic film. The link
>>> does make the point that zinc films self-heal better than aluminium
>>> films - it takes less energy to blow it away from the short-circuit path
>>> - but they do oxidise at room temperature in  way that alumniuum films
>>> don't.
>>
>> Told ya so.
>
> You didn't.

Yes he did.

> You made a bald claim unsupported by any evidence.

LOL

Eb Major has three flats.
I can find evidence if you want but I don't provide evidence for every
statement I make because others can either find out for themselves or they
may already know.

> You did post a link that presented a whole grab-bag of possible sources, but you didn't identify any of them as actually useful, 
> so you didn't tell me anything. Even the sloppy nature of your thinking that this revealed (again) has been on show for the past 
> twenty years.
>
> -- 
> Bill Sloman, Sydney
>

Back to sci.electronics.design | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

Re: Surplus electricity Joerg <news@analogconsultants.com> - 2026-03-24 13:32 -0700
  Re: Surplus electricity Don Y <blockedofcourse@foo.invalid> - 2026-03-24 13:53 -0700
    Re: Surplus electricity Joerg <news@analogconsultants.com> - 2026-03-24 14:17 -0700
      Re: Surplus electricity Don Y <blockedofcourse@foo.invalid> - 2026-03-24 15:26 -0700
        Re: Surplus electricity Joerg <news@analogconsultants.com> - 2026-03-24 16:51 -0700
          Re: Surplus electricity Don Y <blockedofcourse@foo.invalid> - 2026-03-24 17:53 -0700
            Re: Surplus electricity Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-24 20:54 -0700
              Re: Surplus electricity Don Y <blockedofcourse@foo.invalid> - 2026-03-24 21:21 -0700
                Re: Surplus electricity Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-25 00:14 -0700
                Re: Surplus electricity Don Y <blockedofcourse@foo.invalid> - 2026-03-25 02:25 -0700
                Re: Surplus electricity Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-25 07:05 -0700
                Re: Surplus electricity Don Y <blockedofcourse@foo.invalid> - 2026-03-25 12:30 -0700
                Re: Surplus electricity Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-25 13:29 -0700
                Re: Surplus electricity Don Y <blockedofcourse@foo.invalid> - 2026-03-25 14:47 -0700
                Re: Surplus electricity Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-25 15:00 -0700
                Re: Surplus electricity Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-25 15:20 -0700
                Re: Surplus electricity Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-25 15:33 -0700
                Re: Surplus electricity john larkin <jl@glen--canyon.com> - 2026-03-25 15:54 -0700
                Re: Surplus electricity Don Y <blockedofcourse@foo.invalid> - 2026-03-25 18:20 -0700
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-03-25 22:21 +1100
                Re: Surplus electricity Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-25 07:10 -0700
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-03-26 01:28 +1100
                Re: Surplus electricity Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-25 07:45 -0700
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-03-26 16:31 +1100
                Re: Surplus electricity john larkin <jl@glen--canyon.com> - 2026-03-25 09:17 -0700
                Re: Surplus electricity Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2026-03-25 15:38 -0400
                Re: Surplus electricity john larkin <jl@glen--canyon.com> - 2026-03-25 14:32 -0700
                Re: Surplus electricity Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-25 14:52 -0700
                Re: Surplus electricity Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2026-03-25 22:03 +0000
                Re: Surplus electricity Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-25 15:11 -0700
                Re: Surplus electricity Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2026-03-26 21:17 -0400
                Re: Surplus electricity Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2026-03-25 22:14 +0000
                Re: Surplus electricity Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2026-03-25 22:01 +0000
                Re: Surplus electricity john larkin <jl@glen--canyon.com> - 2026-03-25 15:52 -0700
                Re: Surplus electricity Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2026-03-26 20:58 -0400
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-03-26 16:51 +1100
                Re: Surplus electricity john larkin <jl@glen--canyon.com> - 2026-03-26 02:48 -0700
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-03-27 01:25 +1100
                Re: Surplus electricity john larkin <jl@glen--canyon.com> - 2026-03-26 07:48 -0700
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-03-27 15:19 +1100
                Re: Surplus electricity john larkin <jl@glen--canyon.com> - 2026-03-27 04:24 -0700
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-03-28 01:55 +1100
                Re: Surplus electricity john larkin <jl@glen--canyon.com> - 2026-03-27 11:43 -0700
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-03-28 15:37 +1100
                Re: Surplus electricity "Edward Rawde" <invalid@invalid.invalid> - 2026-03-29 12:10 -0400
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-03-30 14:47 +1100
                Re: Surplus electricity john larkin <jl@glen--canyon.com> - 2026-03-30 08:09 -0700
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-03-31 16:13 +1100
                Re: Surplus electricity john larkin <jl@glen--canyon.com> - 2026-03-31 10:59 -0700
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-04-01 15:10 +1100
                Re: Surplus electricity john larkin <jl@glen--canyon.com> - 2026-04-01 01:08 -0700
                Re: Surplus electricity "Edward Rawde" <invalid@invalid.invalid> - 2026-03-31 20:34 -0400
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-04-01 15:36 +1100
                Re: Surplus electricity john larkin <jl@glen--canyon.com> - 2026-04-01 01:10 -0700
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-04-02 02:25 +1100
                Re: Surplus electricity "Edward Rawde" <invalid@invalid.invalid> - 2026-04-01 12:35 -0400
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-04-02 14:54 +1100
                Re: Surplus electricity "Edward Rawde" <invalid@invalid.invalid> - 2026-04-02 00:07 -0400
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-04-02 17:40 +1100
                Re: Surplus electricity Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-04-02 06:53 -0700
                Re: Surplus electricity "Edward Rawde" <invalid@invalid.invalid> - 2026-04-02 10:32 -0400
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-04-03 02:45 +1100
                Re: Surplus electricity Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-04-02 09:06 -0700
                Re: Surplus electricity Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-04-02 09:16 -0700
                Re: Surplus electricity john larkin <jl@glen--canyon.com> - 2026-04-02 08:07 -0700
                Re: Surplus electricity Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-04-02 09:04 -0700
                Re: Surplus electricity john larkin <jl@glen--canyon.com> - 2026-04-02 08:05 -0700
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-04-03 03:16 +1100
                Re: Surplus electricity "Edward Rawde" <invalid@invalid.invalid> - 2026-04-02 20:51 -0400
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-04-03 16:29 +1100
                Re: Surplus electricity JM <sunaecoNoChoppedPork@gmail.com> - 2026-04-03 07:22 +0100
                Re: Surplus electricity "Edward Rawde" <invalid@invalid.invalid> - 2026-04-03 12:17 -0400
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-04-04 05:10 +1100
                Re: Surplus electricity "Edward Rawde" <invalid@invalid.invalid> - 2026-04-03 19:16 -0400
                Re: Surplus electricity john larkin <jl@glen--canyon.com> - 2026-04-03 16:30 -0700
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-04-04 17:05 +1100
                Re: Surplus electricity "Edward Rawde" <invalid@invalid.invalid> - 2026-04-04 11:02 -0400
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-04-04 16:55 +1100
                Re: Surplus electricity "Edward Rawde" <invalid@invalid.invalid> - 2026-04-04 11:35 -0400
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-04-05 12:53 +1000
                Re: Surplus electricity "Edward Rawde" <invalid@invalid.invalid> - 2026-04-05 00:29 -0400
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-04-05 15:46 +1000
                Re: Surplus electricity "Edward Rawde" <invalid@invalid.invalid> - 2026-04-05 01:55 -0400
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-04-05 16:57 +1000
                Re: Surplus electricity Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2026-03-26 18:30 +0000
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-03-28 02:15 +1100
                Re: Surplus electricity Bill Sloman <bill.sloman@ieee.org> - 2026-03-26 16:19 +1100
            Re: Surplus electricity Joerg <news@analogconsultants.com> - 2026-03-27 10:10 -0700
              Re: Surplus electricity Don Y <blockedofcourse@foo.invalid> - 2026-03-27 15:22 -0700
  Re: Surplus electricity Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-03-24 13:54 -0700

csiph-web