Chip with simple program for Toy

[default]

On 12 Feb 2018 04:18:38 GMT, Jasen Betts <jasen@xnet.co.nz> wrote:

>Ammonium chloride

Ah, good point.

I looked up Joy dishwashing liquid for the hell of it and the MSDS
gives the ph as 9 in a 10% solution.

So it will neutralize acids, and isn't unique in that respect. (most
household cleaners are alkaline in nature, from what I'm reading on
the subject)

AND 10%? does it really take that much Joy to do dishes, and have I
been doing it wrong all these years?

 

On Sunday, February 11, 2018 at 7:59:23 AM UTC-5, default wrote:

On Sun, 11 Feb 2018 04:52:51 -0600, oldschool@tubes.com wrote:

I got an old AM-FM pocket transistor radio which looked good and clean
till I opened the battery compartment. Very corroded carbon zinc
batteries were in it. After removing them, I cleaned off as much of the
corrosion as possible by scraping with a plastic stick, and scrubbing
with q-tips and rubbing alcohol. That got rid of most of it, and I was
surprised to find the battery clips are not badly damaged, but I had to
use a fingernail file (sandpaper strip) on the ends of the springs.

Better yet, the radio works perfectly.

But there is still a little of that battery corrosion still in there. In
all the years I've worked on electronics, I have never found a perfect
way to clean up leaked batteries. Is there some sort of spray or a
chemical that will dissolve or deactivate that crap?

Of course it has to be safe for the circuit board and components too. I
use the 91% isopropyl alcohol, so it evaporates quickly and leaves
little water residue behind. (Then leave it dry well before use).

I like dish detergent and a soak in very hot water then scrub with a
toothbrush and let dry in a warm oven, for hours.

Under 200 F, I guess?

 

[default]

On Tue, 13 Feb 2018 00:44:32 -0800 (PST), bruce2bowser@gmail.com
wrote:

On Sunday, February 11, 2018 at 7:59:23 AM UTC-5, default wrote:
On Sun, 11 Feb 2018 04:52:51 -0600, oldschool@tubes.com wrote:

I got an old AM-FM pocket transistor radio which looked good and clean
till I opened the battery compartment. Very corroded carbon zinc
batteries were in it. After removing them, I cleaned off as much of the
corrosion as possible by scraping with a plastic stick, and scrubbing
with q-tips and rubbing alcohol. That got rid of most of it, and I was
surprised to find the battery clips are not badly damaged, but I had to
use a fingernail file (sandpaper strip) on the ends of the springs.

Better yet, the radio works perfectly.

But there is still a little of that battery corrosion still in there. In
all the years I've worked on electronics, I have never found a perfect
way to clean up leaked batteries. Is there some sort of spray or a
chemical that will dissolve or deactivate that crap?

Of course it has to be safe for the circuit board and components too. I
use the 91% isopropyl alcohol, so it evaporates quickly and leaves
little water residue behind. (Then leave it dry well before use).

I like dish detergent and a soak in very hot water then scrub with a
toothbrush and let dry in a warm oven, for hours.

Under 200 F, I guess?

Too hot that I want to keep my hands on it, but can't say I ever
measured the temperature. I'm a hobbyist these days and bake a lot of
bread so have a good feel for how my oven behaves. I use a baking
sheet under the electronics to shield them from direct radiation from
the element, then put them on a paper towel or newsprint, preheat the
oven then put the stuff in.

When I was working in lab we had vacuum ovens and that would be my
first choice for drying electronics. An hour under vacuum at maybe
50C and it would be bone dry.

I once used my pressure cooker (with all the sealing reversed) to pull
a vacuum on molten wax to impregnate an induction coil secondary that
I was building. That's a technique used in line frequency
transformers with varnish to draw the varnish into the windings (or,
more correctly, pull out the air/moisture) and laminations to stop
buzzing.

 

[Jasen Betts]

On 2018-02-13, bruce2bowser@gmail.com <bruce2bowser@gmail.com> wrote:

On Sunday, February 11, 2018 at 7:59:23 AM UTC-5, default wrote:
On Sun, 11 Feb 2018 04:52:51 -0600, oldschool@tubes.com wrote:

I got an old AM-FM pocket transistor radio which looked good and clean
till I opened the battery compartment. Very corroded carbon zinc
batteries were in it. After removing them, I cleaned off as much of the
corrosion as possible by scraping with a plastic stick, and scrubbing
with q-tips and rubbing alcohol. That got rid of most of it, and I was
surprised to find the battery clips are not badly damaged, but I had to
use a fingernail file (sandpaper strip) on the ends of the springs.

Better yet, the radio works perfectly.

But there is still a little of that battery corrosion still in there. In
all the years I've worked on electronics, I have never found a perfect
way to clean up leaked batteries. Is there some sort of spray or a
chemical that will dissolve or deactivate that crap?

Of course it has to be safe for the circuit board and components too. I
use the 91% isopropyl alcohol, so it evaporates quickly and leaves
little water residue behind. (Then leave it dry well before use).

I like dish detergent and a soak in very hot water then scrub with a
toothbrush and let dry in a warm oven, for hours.

Under 200 F, I guess?

capacitor electrolyte boils hotter than water does, so if the plastics
and adhesives in the radio can stand it you can go hotter


--
This email has not been checked by half-arsed antivirus software

 

[default]

On 14 Feb 2018 09:04:06 GMT, Jasen Betts <jasen@xnet.co.nz> wrote:

On 2018-02-13, bruce2bowser@gmail.com <bruce2bowser@gmail.com> wrote:
On Sunday, February 11, 2018 at 7:59:23 AM UTC-5, default wrote:
On Sun, 11 Feb 2018 04:52:51 -0600, oldschool@tubes.com wrote:

I got an old AM-FM pocket transistor radio which looked good and clean
till I opened the battery compartment. Very corroded carbon zinc
batteries were in it. After removing them, I cleaned off as much of the
corrosion as possible by scraping with a plastic stick, and scrubbing
with q-tips and rubbing alcohol. That got rid of most of it, and I was
surprised to find the battery clips are not badly damaged, but I had to
use a fingernail file (sandpaper strip) on the ends of the springs.

Better yet, the radio works perfectly.

But there is still a little of that battery corrosion still in there. In
all the years I've worked on electronics, I have never found a perfect
way to clean up leaked batteries. Is there some sort of spray or a
chemical that will dissolve or deactivate that crap?

Of course it has to be safe for the circuit board and components too. I
use the 91% isopropyl alcohol, so it evaporates quickly and leaves
little water residue behind. (Then leave it dry well before use).

I like dish detergent and a soak in very hot water then scrub with a
toothbrush and let dry in a warm oven, for hours.

Under 200 F, I guess?

capacitor electrolyte boils hotter than water does, so if the plastics
and adhesives in the radio can stand it you can go hotter

Yeah, but he's dealing with old stuff, germanium transistors and
phenolic or paper-epoxy circuit boards, etc.. It would be too easy to
wreck stuff.

 

"ust my opinion, but I think that all companies who sell electronics
should have their manuals online."

Most of them have the owner's manuals, but not Kenwood. That sucks.

Many of them do have them and service manuals online, but only for ASCs. I used to have a collection of usernames and passwords for these from various places. Hitachi was pretty good, you didn't have to be an ASC, just prove you are a service shop and you could get any manual from their website. Don't know if it is still that way.

i remember the days when some came with the unit, in a little pouch or something. Earlier some were on a piece of paper stuck to the inside back or something.

California IIRC used to have a law that they had to stock parts for 7 years for things over a certain price, maybe $ 100 or something like that. I don't know if that included selling them to the general public or an ISC. I don't remember them saying anything about price though, so it might have been just more feel good legislation, like that they throw a waitress in jail and fine her up to $ 1,000 for giving you a straw without asking first. Knowing how crazy these fucks are if you want a fork and she doesn't offer can you just ask, or do you have to ask her to ask you ? Remember this is a state where you can be fined for watering your lawn and fined for watering it. People with brains and useful skills are moving out of there, Amazon is a pretty good size firm and they are going to other states gradually. unlike other states they wanted sales tax on out of state purchases. Amazon threatened to move out. I am not sure how that was resolved, but they are opening up in Ohio. Ohio ! The average work ethic here is that of a cocker spaniel.

I think Europe has some laws about this stuff, but we ain't i Europe. And how many would trade our guns for a manual for some gadget ?

 

[Seymore4Head]

On Sun, 3 Dec 2017 01:44:46 +0800, "Mr. Man-wai Chang"
<toylet.toylet@gmail.com> wrote:

On 3/12/2017 2:30 AM, Paul Hayton wrote:
Hi there

I run a retro BBS using Mystic BBS software. The author of the software has
been actively developing it for the last 15+ years. I thought I'd post here
to let anyone interested in BBSing that there is a Raspberry Pi (ARM) version
of Mystic available from mysticbbs.com

Be sure to use the latest 1.12 Alpha, it's far more developed and robust than
the much earlier 1.11 release.

Some links that may interest you

How hard would it be for BBS software to run on telnet?

I remember years ago that I had some program that would do telnet and
there were BBSs you could connect to. Could BBS software be modified
to be accessed from the web using a browser link?

I also always wondered how hard it would be to get programs to run
from the cloud instead of being housed on a personal machine.

I wish some colleges get involved with Usenet and keep it alive.

I think BBC software for schools would also be the bomb.

 

[Mr. Man-wai Chang]

Check out the following BBS in Hong Kong, accessible both by phone and web:

http://smartiesbbs.no-ip.org/

On 23/2/2018 01:56, Seymore4Head wrote:

How hard would it be for BBS software to run on telnet?

I remember years ago that I had some program that would do telnet and
there were BBSs you could connect to. Could BBS software be modified
to be accessed from the web using a browser link?

I also always wondered how hard it would be to get programs to run
from the cloud instead of being housed on a personal machine.

I wish some colleges get involved with Usenet and keep it alive.

I think BBC software for schools would also be the bomb.

--
@~@ Remain silent! Drink, Blink, Stretch! Live long and prosper!!
/ v \ Simplicity is Beauty!
/( _ )\ May the Force and farces be with you!
^ ^ (x86_64 Ubuntu 9.10) Linux 2.6.39.3
不借貸! 不詐騙! 不賭錢! 不援交! 不打交! 不打劫! 不自殺! 不求神! 請考慮綜援
(CSSA):
http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa

 

[The Natural Philosopher]

On 22/02/18 17:56, Seymore4Head wrote:

On Sun, 3 Dec 2017 01:44:46 +0800, "Mr. Man-wai Chang"
toylet.toylet@gmail.com> wrote:

On 3/12/2017 2:30 AM, Paul Hayton wrote:
Hi there

I run a retro BBS using Mystic BBS software. The author of the software has
been actively developing it for the last 15+ years. I thought I'd post here
to let anyone interested in BBSing that there is a Raspberry Pi (ARM) version
of Mystic available from mysticbbs.com

Be sure to use the latest 1.12 Alpha, it's far more developed and robust than
the much earlier 1.11 release.

Some links that may interest you

How hard would it be for BBS software to run on telnet?

I remember years ago that I had some program that would do telnet and
there were BBSs you could connect to. Could BBS software be modified
to be accessed from the web using a browser link?

I also always wondered how hard it would be to get programs to run
from the cloud instead of being housed on a personal machine.

I wish some colleges get involved with Usenet and keep it alive.

I think BBC software for schools would also be the bomb.

BBS software these days is a PHP application running over a web
interface and is way better than a simple telnet based system - pictures
threads, fora, the lot

https://www.phpbb.com/
https://mybb.com/

Load (one of) these up on a shared/virtial server in internet land and
get chattin!



--
Future generations will wonder in bemused amazement that the early
twenty-first century’s developed world went into hysterical panic over a
globally average temperature increase of a few tenths of a degree, and,
on the basis of gross exaggerations of highly uncertain computer
projections combined into implausible chains of inference, proceeded to
contemplate a rollback of the industrial age.

Richard Lindzen

 

[Seymore4Head]

On Fri, 23 Feb 2018 02:36:37 +0800, "Mr. Man-wai Chang"
<toylet.toylet@gmail.com> wrote:

Check out the following BBS in Hong Kong, accessible both by phone and web:

http://smartiesbbs.no-ip.org/

I went to have a look, but the "new user" link if broken.

 

[Jasen Betts]

On 2018-02-22, Seymore4Head <no@none.invalid> wrote:

On Sun, 3 Dec 2017 01:44:46 +0800, "Mr. Man-wai Chang"
toylet.toylet@gmail.com> wrote:


How hard would it be for BBS software to run on telnet?

About as hard as on a serial port.

I remember years ago that I had some program that would do telnet and
there were BBSs you could connect to.

Could BBS software be modified to be accessed from the web using a
browser link?

probably, UX would suck though. no mouse.

--
This email has not been checked by half-arsed antivirus software

 

[Peter Jetson]

Seymore4Head wrote:

http://smartiesbbs.no-ip.org/

I went to have a look, but the "new user" link if broken.

Looks like this link will get you there

http://smartiesbbs.no-ip.org/cgi-bin/eleweb.exe?action=3&script=new_one

Peter

 

[Big Bad Bob]

On 12/02/17 09:44, Mr. Man-wai Chang wrote:

I supposed any Linux distributions could run it?

that's one of the beauties of linux. your distro shouldn't determine
whether or not you can run something designed for Linux [although the
presence or absence of 'devel' packages and/or correct shared lib
versions are another thing entirely]


--
your story is so touching, but it sounds just like a lie
"Straighten up and fly right"

 

[Seymore4Head]

On Fri, 23 Feb 2018 16:07:36 +1100, Peter Jetson <usenet@jetson.id.au>
wrote:

Seymore4Head wrote:

http://smartiesbbs.no-ip.org/

I went to have a look, but the "new user" link if broken.

Looks like this link will get you there

http://smartiesbbs.no-ip.org/cgi-bin/eleweb.exe?action=3&script=new_one

Peter

So I tried it.
It works.
Not much of interest, but it was interesting that it worked so well.

 

On Sunday, May 10, 2015 at 9:16:12 PM UTC+5:30, Jim Thompson wrote:

Varistor/MOV Spice Modeling has been updated.

See VaristorMOV.zip on the Device Models & Subcircuits Page of my
website.

...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: skypeanalog | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

 

[Mr. Man-wai Chang]

On 8/12/2018 12:50 AM, nospam wrote:

In article <pkn432$pvc$1@toylet.eternal-september.org>, Mr. Man-wai
Chang <toylet.toylet@gmail.com> wrote:


But how do you get a 100% TRUE lossless original? Using good, old
film-based cameras?

film is more lossy than digital.

I don't know much about photography films. And you might need to talk
about the size (length x width) as well as the resolution of the senors
and films!

But isn't film molecular level?

--
@~@ Remain silent! Drink, Blink, Stretch! Live long and prosper!!
/ v \ Simplicity is Beauty!
/( _ )\ May the Force and farces be with you!
^ ^ (x86_64 Ubuntu 9.10) Linux 2.6.39.3
不借貸! 不詐騙! 不賭錢! 不援交! 不打交! 不打劫! 不自殺! 不求神! 請考慮綜援
(CSSA):
http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa

 

[nospam]

In article <pkn4be$rad$1@toylet.eternal-september.org>, Mr. Man-wai
Chang <toylet.toylet@gmail.com> wrote:

But how do you get a 100% TRUE lossless original? Using good, old
film-based cameras?

film is more lossy than digital.

I don't know much about photography films.

clearly.

And you might need to talk
about the size (length x width) as well as the resolution of the senors
and films!

yep.

> But isn't film molecular level?

everything is.

 

[Mr. Man-wai Chang]

On 8/12/2018 1:10 AM, nospam wrote:

I don't know much about photography films.

clearly.

And you might need to talk
about the size (length x width) as well as the resolution of the senors
and films!

yep.

But isn't film molecular level?

everything is.

Is your claim based on traditional size of film, which is 135?

But why can't we use a bigger film then? Should we always compare 135
film against CMOS sensors of different size?

--
@~@ Remain silent! Drink, Blink, Stretch! Live long and prosper!!
/ v \ Simplicity is Beauty!
/( _ )\ May the Force and farces be with you!
^ ^ (x86_64 Ubuntu 9.10) Linux 2.6.39.3
不借貸! 不詐騙! 不賭錢! 不援交! 不打交! 不打劫! 不自殺! 不求神! 請考慮綜援
(CSSA):
http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa

 

[nospam]

In article <pkn5jo$3na$1@toylet.eternal-september.org>, Mr. Man-wai
Chang <toylet.toylet@gmail.com> wrote:

I don't know much about photography films.

clearly.

And you might need to talk
about the size (length x width) as well as the resolution of the senors
and films!

yep.

But isn't film molecular level?

everything is.

Is your claim based on traditional size of film, which is 135?

size doesn't change anything. film is very lossy and much less accurate
than digital.

> But why can't we use a bigger film then?

we can. there are larger film sizes, namely medium format and large
format, but then you also have to use a larger digital sensor to match.

Should we always compare 135
film against CMOS sensors of different size?

always the same size format. otherwise it's not a valid comparison.

 

[Mr. Man-wai Chang]

On 8/12/2018 2:08 AM, nospam wrote:

In article <pkn8cs$lqs$1@toylet.eternal-september.org>, Mr. Man-wai
Chang <toylet.toylet@gmail.com> wrote:


But how do you determine how close a digital image get to the original
without a reference? You have to have a control as in experiment!

the reference is the original

In a court trial, how do you do that? You cannot take the physical
reality into a court... there is also the time factor. Whatever happened
in reality might not repeat itself before the court.

--
@~@ Remain silent! Drink, Blink, Stretch! Live long and prosper!!
/ v \ Simplicity is Beauty!
/( _ )\ May the Force and farces be with you!
^ ^ (x86_64 Ubuntu 9.10) Linux 2.6.39.3
不借貸! 不詐騙! 不賭錢! 不援交! 不打交! 不打劫! 不自殺! 不求神! 請考慮綜援
(CSSA):
http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa