• More about chinese wallwarts...

    From Jan Panteltje@21:1/5 to All on Fri Jul 8 11:16:41 2022
    Hardly I mentioned bad elcos in wallwarts or the next one happened

    I bought this DVB-S2 satellite receiver box last year,
    it came with a 12 V 1 A supply.
    But always when it was moving the sat dish (drive the dish motor) it gave a big hum in the audio.
    Well OK, never measured the current that I can remember my dish motor used
    and as in the previous (USB) sat receiver box I had to replace the LM317 4 or 5 times before I tossed the thing
    and as everything else was working, I left them the advantage of the doubt,

    But now.. since yesterday, it also gave a hum when not moving on some channels (H polarization and V polarization have different voltages to the LNB)
    I went looking for a 12V wallwart in boxes full of stuff and found a big one 12 V 1.5 A..
    Even the connector did fit.
    No more hum, no more hum when using the dish motor either.

    So.. and as 12V cable on this one was much ticker, 2 wire,
    I split it in half for a small section and used the clamp-on DC meter to measure the current
    Less than 850 mA even when dish moving...
    So the old 1 A wallwart was not even 850 mA... when new!

    Had a good look at the label:
    http://panteltje.com/pub/chinese_12V_1A_what_IXIMG_0821.JPG
    If you look close it does not say 1A DC, but
    _____
    - - -
    So with free ripple let's say!

    A look inside, and for sure this is the SMALLEST wallwart I have!!:
    http://panteltje.com/pub/chinese_12V_1A_top_view_IXIMG_0822.JPG
    primary bridge, 2 x 10 uF 400 V in parallel,
    a small transformer,
    secondary 330 uF 16 V.., diode, inductor, 470 uF 16 V
    No power transistor???
    http://panteltje.com/pub/chinese_12V_1A_converter_chip_IXIMG_0824.JPG
    Well, dunno this chip, but 12 W output ???? No cooling? Efficiency?

    It took a vice, 2 big pliers and a hammer to open this thing, still in one piece
    so can put it back together, the 470 uF is clearly swollen and needs replacement.

    But from 100 V to 240 V?
    That means between 339 and 141 V primary on the converter.
    But for 12 W out counting efficiency say 80 % makes 15 W input
    15 W at 141 V input makes i = 15 / 141 = 100 mA
    20 uF at 60 Hz so 120 Hz so 8,3 ms between mains peaks
    Q = C.U = i.t so ripple U = i.t / C = 41 Vpp

    So that converter chip should at least work between 141 - 41 = 100V DC input (min US) and 339 V DC input (nominal EU)..
    Seem a bit hairy to me :-)
    Well it did not even do 1 A when new at 230 V in...

    What's in a spec?, any legal issues here?

    Now that chip, on it it says
    125360
    OB2502PCP

    google
    https://www.dianyuan.com/upload/community/2017/06/21/1498016857-45025.pd

    Well!!
    Build in power MOSFET, no reference needed....

    Will replace the 470 uF and use it for things that need less than 1 A at 12 V ...

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Doe@21:1/5 to Jan Panteltje on Fri Jul 8 12:45:36 2022
    Here in America, I look for "UL listed". That's rare nowadays, but it's
    still on some things.


    Jan Panteltje <pNaonStpealmtje@yahoo.com> wrote:

    Hardly I mentioned bad elcos in wallwarts or the next one happened

    I bought this DVB-S2 satellite receiver box last year,
    it came with a 12 V 1 A supply.
    But always when it was moving the sat dish (drive the dish motor) it gave a big hum in the audio.
    Well OK, never measured the current that I can remember my dish motor used and as in the previous (USB) sat receiver box I had to replace the LM317 4 or 5 times before I tossed the thing
    and as everything else was working, I left them the advantage of the doubt,

    But now.. since yesterday, it also gave a hum when not moving on some channels
    (H polarization and V polarization have different voltages to the LNB)
    I went looking for a 12V wallwart in boxes full of stuff and found a big one 12 V 1.5 A..
    Even the connector did fit.
    No more hum, no more hum when using the dish motor either.

    So.. and as 12V cable on this one was much ticker, 2 wire,
    I split it in half for a small section and used the clamp-on DC meter to measure the current
    Less than 850 mA even when dish moving...
    So the old 1 A wallwart was not even 850 mA... when new!

    Had a good look at the label:
    http://panteltje.com/pub/chinese_12V_1A_what_IXIMG_0821.JPG
    If you look close it does not say 1A DC, but
    _____
    - - -
    So with free ripple let's say!

    A look inside, and for sure this is the SMALLEST wallwart I have!!:
    http://panteltje.com/pub/chinese_12V_1A_top_view_IXIMG_0822.JPG
    primary bridge, 2 x 10 uF 400 V in parallel,
    a small transformer,
    secondary 330 uF 16 V.., diode, inductor, 470 uF 16 V
    No power transistor???
    http://panteltje.com/pub/chinese_12V_1A_converter_chip_IXIMG_0824.JPG
    Well, dunno this chip, but 12 W output ???? No cooling? Efficiency?

    It took a vice, 2 big pliers and a hammer to open this thing, still in one piece
    so can put it back together, the 470 uF is clearly swollen and needs replacement.

    But from 100 V to 240 V?
    That means between 339 and 141 V primary on the converter.
    But for 12 W out counting efficiency say 80 % makes 15 W input
    15 W at 141 V input makes i = 15 / 141 = 100 mA
    20 uF at 60 Hz so 120 Hz so 8,3 ms between mains peaks
    Q = C.U = i.t so ripple U = i.t / C = 41 Vpp

    So that converter chip should at least work between 141 - 41 = 100V DC input (min US) and 339 V DC input (nominal EU)..
    Seem a bit hairy to me :-)
    Well it did not even do 1 A when new at 230 V in...

    What's in a spec?, any legal issues here?

    Now that chip, on it it says
    125360
    OB2502PCP

    google
    https://www.dianyuan.com/upload/community/2017/06/21/1498016857-45025.pd

    Well!!
    Build in power MOSFET, no reference needed....

    Will replace the 470 uF and use it for things that need less than 1 A at 12 V ...



    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From jlarkin@highlandsniptechnology.com@21:1/5 to pNaonStpealmtje@yahoo.com on Fri Jul 8 07:03:50 2022
    On Fri, 08 Jul 2022 11:16:41 GMT, Jan Panteltje
    <pNaonStpealmtje@yahoo.com> wrote:

    Hardly I mentioned bad elcos in wallwarts or the next one happened

    I bought this DVB-S2 satellite receiver box last year,
    it came with a 12 V 1 A supply.
    But always when it was moving the sat dish (drive the dish motor) it gave a big hum in the audio.
    Well OK, never measured the current that I can remember my dish motor used >and as in the previous (USB) sat receiver box I had to replace the LM317 4 or 5 times before I tossed the thing
    and as everything else was working, I left them the advantage of the doubt,

    But now.. since yesterday, it also gave a hum when not moving on some channels >(H polarization and V polarization have different voltages to the LNB)
    I went looking for a 12V wallwart in boxes full of stuff and found a big one 12 V 1.5 A..
    Even the connector did fit.
    No more hum, no more hum when using the dish motor either.

    So.. and as 12V cable on this one was much ticker, 2 wire,
    I split it in half for a small section and used the clamp-on DC meter to measure the current
    Less than 850 mA even when dish moving...
    So the old 1 A wallwart was not even 850 mA... when new!

    Had a good look at the label:
    http://panteltje.com/pub/chinese_12V_1A_what_IXIMG_0821.JPG
    If you look close it does not say 1A DC, but
    _____
    - - -
    So with free ripple let's say!

    A look inside, and for sure this is the SMALLEST wallwart I have!!:
    http://panteltje.com/pub/chinese_12V_1A_top_view_IXIMG_0822.JPG
    primary bridge, 2 x 10 uF 400 V in parallel,
    a small transformer,
    secondary 330 uF 16 V.., diode, inductor, 470 uF 16 V
    No power transistor???
    http://panteltje.com/pub/chinese_12V_1A_converter_chip_IXIMG_0824.JPG
    Well, dunno this chip, but 12 W output ???? No cooling? Efficiency?

    It took a vice, 2 big pliers and a hammer to open this thing, still in one piece
    so can put it back together, the 470 uF is clearly swollen and needs replacement.

    But from 100 V to 240 V?
    That means between 339 and 141 V primary on the converter.
    But for 12 W out counting efficiency say 80 % makes 15 W input
    15 W at 141 V input makes i = 15 / 141 = 100 mA
    20 uF at 60 Hz so 120 Hz so 8,3 ms between mains peaks
    Q = C.U = i.t so ripple U = i.t / C = 41 Vpp

    So that converter chip should at least work between 141 - 41 = 100V DC input (min US) and 339 V DC input (nominal EU)..
    Seem a bit hairy to me :-)
    Well it did not even do 1 A when new at 230 V in...

    What's in a spec?, any legal issues here?

    Now that chip, on it it says
    125360
    OB2502PCP

    google
    https://www.dianyuan.com/upload/community/2017/06/21/1498016857-45025.pd

    Well!!
    Build in power MOSFET, no reference needed....

    Will replace the 470 uF and use it for things that need less than 1 A at 12 V ...

    That doesn't look awful, for a cheap Chinese wart. Sounds like a cheap
    Chinese electro cap failed. There are a newish generation of chips
    that do the offline PFC regulation function.

    We have used about 12,000 of various Phihong and MeanWell warts and laptop-style supplies, and they have been excellent.

    We are now shipping a rackmount box to a big laser facility and using
    a 24v laptop supply to run it. That got around massive safety reviews
    and test lab hassles that we would have had if we ran AC to the box.

    https://www.dropbox.com/s/g0w848zwakq804s/T500_Small.jpg?raw=1

    That uses a 65 watt 24v Phihong supply, and we switch down to various
    other supplies inside.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Don@21:1/5 to jlarkin@highlandsniptechnology.com on Fri Jul 8 15:00:19 2022
    jlarkin@highlandsniptechnology.com wrote:
    Jan Panteltje wrote:

    Hardly I mentioned bad elcos in wallwarts or the next one happened

    I bought this DVB-S2 satellite receiver box last year,
    it came with a 12 V 1 A supply.
    But always when it was moving the sat dish (drive the dish motor) it gave a big hum in the audio.
    Well OK, never measured the current that I can remember my dish motor used >>and as in the previous (USB) sat receiver box I had to replace the LM317 4 or 5 times before I tossed the thing
    and as everything else was working, I left them the advantage of the doubt, >>
    But now.. since yesterday, it also gave a hum when not moving on some channels
    (H polarization and V polarization have different voltages to the LNB)
    I went looking for a 12V wallwart in boxes full of stuff and found a big one 12 V 1.5 A..
    Even the connector did fit.
    No more hum, no more hum when using the dish motor either.

    So.. and as 12V cable on this one was much ticker, 2 wire,
    I split it in half for a small section and used the clamp-on DC meter to measure the current
    Less than 850 mA even when dish moving...
    So the old 1 A wallwart was not even 850 mA... when new!

    Had a good look at the label:
    http://panteltje.com/pub/chinese_12V_1A_what_IXIMG_0821.JPG
    If you look close it does not say 1A DC, but
    _____
    - - -
    So with free ripple let's say!

    A look inside, and for sure this is the SMALLEST wallwart I have!!:
    http://panteltje.com/pub/chinese_12V_1A_top_view_IXIMG_0822.JPG
    primary bridge, 2 x 10 uF 400 V in parallel,
    a small transformer,
    secondary 330 uF 16 V.., diode, inductor, 470 uF 16 V
    No power transistor???
    http://panteltje.com/pub/chinese_12V_1A_converter_chip_IXIMG_0824.JPG >>Well, dunno this chip, but 12 W output ???? No cooling? Efficiency?

    It took a vice, 2 big pliers and a hammer to open this thing, still in one piece
    so can put it back together, the 470 uF is clearly swollen and needs replacement.

    But from 100 V to 240 V?
    That means between 339 and 141 V primary on the converter.
    But for 12 W out counting efficiency say 80 % makes 15 W input
    15 W at 141 V input makes i = 15 / 141 = 100 mA
    20 uF at 60 Hz so 120 Hz so 8,3 ms between mains peaks
    Q = C.U = i.t so ripple U = i.t / C = 41 Vpp

    So that converter chip should at least work between 141 - 41 = 100V DC input (min US) and 339 V DC input (nominal EU)..
    Seem a bit hairy to me :-)
    Well it did not even do 1 A when new at 230 V in...

    What's in a spec?, any legal issues here?

    Now that chip, on it it says
    125360
    OB2502PCP

    google
    https://www.dianyuan.com/upload/community/2017/06/21/1498016857-45025.pd

    Well!!
    Build in power MOSFET, no reference needed....

    Will replace the 470 uF and use it for things that need less than 1 A at 12 V...

    That doesn't look awful, for a cheap Chinese wart. Sounds like a cheap Chinese electro cap failed. There are a newish generation of chips
    that do the offline PFC regulation function.

    We have used about 12,000 of various Phihong and MeanWell warts and laptop-style supplies, and they have been excellent.

    We are now shipping a rackmount box to a big laser facility and using
    a 24v laptop supply to run it. That got around massive safety reviews
    and test lab hassles that we would have had if we ran AC to the box.

    https://www.dropbox.com/s/g0w848zwakq804s/T500_Small.jpg?raw=1

    That uses a 65 watt 24v Phihong supply, and we switch down to various
    other supplies inside.

    Excellent tear-down, Jan! Your link to the datasheet needs an "f" at the
    end to seamlessly work:

    <https://www.dianyuan.com/upload/community/2017/06/21/1498016857-45025.pdf>

    Phihong also makes adequate (eg cheap, dependable) PoE injectors, John.
    On the other hand, some marquee name companies seem to struggle to
    provide an injector with enough oomph to power even one Wireless Access
    Points (WAP).

    Although PoE Texas makes a nice injector:

    <https://shop.poetexas.com/collections/injectors/products/16-port-gigabit-802-3at-on-demand-poe-injector-with-power-supply-trays>

    don't let its 16-ports fool you. At best it only reliably powers about
    three WAPs.

    My company's DIY alternative product consists of a 1U shelf:

    <https://www.ebay.com/itm/184117646665>

    populated with these injectors:

    <https://www.ebay.com/itm/324916572361>

    The DIY product enhances modularity - even the injectors are modular.
    One module for power conversion and another module for injection. Such modularity makes it easy to keep plenty of spares on hand and avoid Just
    In Time like the plague it is.

    Danke,

    --
    Don, KB7RPU, https://www.qsl.net/kb7rpu
    There was a young lady named Bright Whose speed was far faster than light;
    She set out one day In a relative way And returned on the previous night.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jan Panteltje@21:1/5 to g@crcomp.net on Sat Jul 9 10:18:31 2022
    On a sunny day (Fri, 8 Jul 2022 15:00:19 -0000 (UTC)) it happened "Don" <g@crcomp.net> wrote in <20220708a@crcomp.net>:

    Excellent tear-down, Jan! Your link to the datasheet needs an "f" at the
    end to seamlessly work:

    <https://www.dianyuan.com/upload/community/2017/06/21/1498016857-45025.pdf>

    Thanks for correcting the link,
    seems triple click from Chromium does not work very well.
    .. was reading in newsletter.gsb.bund.de that the lastest Chrome now has 14 new security issues ..
    need to upgrade... ?? ;-)
    8. Google Chrome: 14 Schwachstellen
    Bericht und Anleitung zum Patchen bei Chip:
    https://www.chip.de/news/Google-Chrome-Nutzer-aufgepasst-Neues-Update-schliesst-14-Sicherheitsluecken_184310432.html

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From jlarkin@highlandsniptechnology.com@21:1/5 to pNaonStpealmtje@yahoo.com on Sat Jul 9 07:05:56 2022
    On Sat, 09 Jul 2022 10:18:31 GMT, Jan Panteltje
    <pNaonStpealmtje@yahoo.com> wrote:

    On a sunny day (Fri, 8 Jul 2022 15:00:19 -0000 (UTC)) it happened "Don" ><g@crcomp.net> wrote in <20220708a@crcomp.net>:

    Excellent tear-down, Jan! Your link to the datasheet needs an "f" at the >>end to seamlessly work:
    <https://www.dianyuan.com/upload/community/2017/06/21/1498016857-45025.pdf>

    Thanks for correcting the link,
    seems triple click from Chromium does not work very well.
    .. was reading in newsletter.gsb.bund.de that the lastest Chrome now has 14 new security issues ..
    need to upgrade... ?? ;-)
    8. Google Chrome: 14 Schwachstellen
    Bericht und Anleitung zum Patchen bei Chip:
    https://www.chip.de/news/Google-Chrome-Nutzer-aufgepasst-Neues-Update-schliesst-14-Sicherheitsluecken_184310432.html





    Firefox lately wants to eat my trusty Win7 PC. It opens something like
    30 processes and uses all my ram. There is an about:config fix for
    that. There seems to be a new version every week or so and some of the
    fixes need to be redone. Nuisance.

    Welcome to the age of bloat. I wonder how much ram the Star Trek
    computer used.

    Ironic that things like wall warts keep getting simpler and more
    reliable and software goes the opposite way.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jan Panteltje@21:1/5 to jlarkin@highlandsniptechnology.com on Sun Jul 10 06:52:59 2022
    On a sunny day (Sat, 09 Jul 2022 07:05:56 -0700) it happened jlarkin@highlandsniptechnology.com wrote in <ob2jchpddsm0s031bmckdibdn1ge5fghfk@4ax.com>:

    On Sat, 09 Jul 2022 10:18:31 GMT, Jan Panteltje
    <pNaonStpealmtje@yahoo.com> wrote:

    On a sunny day (Fri, 8 Jul 2022 15:00:19 -0000 (UTC)) it happened "Don" >><g@crcomp.net> wrote in <20220708a@crcomp.net>:

    Excellent tear-down, Jan! Your link to the datasheet needs an "f" at the >>>end to seamlessly work:
    <https://www.dianyuan.com/upload/community/2017/06/21/1498016857-45025.pdf> >>
    Thanks for correcting the link,
    seems triple click from Chromium does not work very well.
    .. was reading in newsletter.gsb.bund.de that the lastest Chrome now has 14 new security issues ..
    need to upgrade... ?? ;-)
    8. Google Chrome: 14 Schwachstellen
    Bericht und Anleitung zum Patchen bei Chip:
    https://www.chip.de/news/Google-Chrome-Nutzer-aufgepasst-Neues-Update-schliesst-14-Sicherheitsluecken_184310432.html





    Firefox lately wants to eat my trusty Win7 PC. It opens something like
    30 processes and uses all my ram. There is an about:config fix for
    that. There seems to be a new version every week or so and some of the
    fixes need to be redone. Nuisance.

    Welcome to the age of bloat. I wonder how much ram the Star Trek
    computer used.

    Ironic that things like wall warts keep getting simpler and more
    reliable and software goes the opposite way.

    Who was it that said: "Things should be as simple as possible, but not simpler than that"?
    I still use my own Usenet newsreader I wrote around year 2000 or so.
    As long as they do not change spec its fine.

    All the hacking and security hype changes internet into a stress zone.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From jlarkin@highlandsniptechnology.com@21:1/5 to pNaonStpealmtje@yahoo.com on Sun Jul 10 06:31:30 2022
    On Sun, 10 Jul 2022 06:52:59 GMT, Jan Panteltje
    <pNaonStpealmtje@yahoo.com> wrote:

    On a sunny day (Sat, 09 Jul 2022 07:05:56 -0700) it happened >jlarkin@highlandsniptechnology.com wrote in ><ob2jchpddsm0s031bmckdibdn1ge5fghfk@4ax.com>:

    On Sat, 09 Jul 2022 10:18:31 GMT, Jan Panteltje
    <pNaonStpealmtje@yahoo.com> wrote:

    On a sunny day (Fri, 8 Jul 2022 15:00:19 -0000 (UTC)) it happened "Don" >>><g@crcomp.net> wrote in <20220708a@crcomp.net>:

    Excellent tear-down, Jan! Your link to the datasheet needs an "f" at the >>>>end to seamlessly work:
    <https://www.dianyuan.com/upload/community/2017/06/21/1498016857-45025.pdf> >>>
    Thanks for correcting the link,
    seems triple click from Chromium does not work very well.
    .. was reading in newsletter.gsb.bund.de that the lastest Chrome now has 14 new security issues ..
    need to upgrade... ?? ;-)
    8. Google Chrome: 14 Schwachstellen
    Bericht und Anleitung zum Patchen bei Chip:
    https://www.chip.de/news/Google-Chrome-Nutzer-aufgepasst-Neues-Update-schliesst-14-Sicherheitsluecken_184310432.html





    Firefox lately wants to eat my trusty Win7 PC. It opens something like
    30 processes and uses all my ram. There is an about:config fix for
    that. There seems to be a new version every week or so and some of the >>fixes need to be redone. Nuisance.

    Welcome to the age of bloat. I wonder how much ram the Star Trek
    computer used.

    Ironic that things like wall warts keep getting simpler and more
    reliable and software goes the opposite way.

    Who was it that said: "Things should be as simple as possible, but not simpler than that"?

    Einstein, about theories.

    I still use my own Usenet newsreader I wrote around year 2000 or so.
    As long as they do not change spec its fine.

    All the hacking and security hype changes internet into a stress zone.

    IBM made a tragic mistake when they selected Microsoft and Intel for
    the PC.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jan Panteltje@21:1/5 to jlarkin@highlandsniptechnology.com on Sun Jul 10 16:53:16 2022
    On a sunny day (Sun, 10 Jul 2022 06:31:30 -0700) it happened jlarkin@highlandsniptechnology.com wrote in <q1llchhn0sije7a13qp8975vdeioid5qo4@4ax.com>:

    On Sun, 10 Jul 2022 06:52:59 GMT, Jan Panteltje
    <pNaonStpealmtje@yahoo.com> wrote:

    On a sunny day (Sat, 09 Jul 2022 07:05:56 -0700) it happened >>jlarkin@highlandsniptechnology.com wrote in >><ob2jchpddsm0s031bmckdibdn1ge5fghfk@4ax.com>:

    On Sat, 09 Jul 2022 10:18:31 GMT, Jan Panteltje >>><pNaonStpealmtje@yahoo.com> wrote:

    On a sunny day (Fri, 8 Jul 2022 15:00:19 -0000 (UTC)) it happened "Don" >>>><g@crcomp.net> wrote in <20220708a@crcomp.net>:

    Excellent tear-down, Jan! Your link to the datasheet needs an "f" at the >>>>>end to seamlessly work:
    <https://www.dianyuan.com/upload/community/2017/06/21/1498016857-45025.pdf>

    Thanks for correcting the link,
    seems triple click from Chromium does not work very well.
    .. was reading in newsletter.gsb.bund.de that the lastest Chrome now has 14 new security issues ..
    need to upgrade... ?? ;-)
    8. Google Chrome: 14 Schwachstellen
    Bericht und Anleitung zum Patchen bei Chip:
    https://www.chip.de/news/Google-Chrome-Nutzer-aufgepasst-Neues-Update-schliesst-14-Sicherheitsluecken_184310432.html





    Firefox lately wants to eat my trusty Win7 PC. It opens something like
    30 processes and uses all my ram. There is an about:config fix for
    that. There seems to be a new version every week or so and some of the >>>fixes need to be redone. Nuisance.

    Welcome to the age of bloat. I wonder how much ram the Star Trek
    computer used.

    Ironic that things like wall warts keep getting simpler and more
    reliable and software goes the opposite way.

    Who was it that said: "Things should be as simple as possible, but not simpler than that"?

    Einstein, about theories.

    I still use my own Usenet newsreader I wrote around year 2000 or so.
    As long as they do not change spec its fine.

    All the hacking and security hype changes internet into a stress zone.

    IBM made a tragic mistake when they selected Microsoft and Intel for
    the PC.

    Not sure that was bad..
    what changed things for the worse was when Microsoft integrated the GUI with the multitasking kernel.
    I remember running win 3.1 on top of DRDOS (Digital Research DOS) and Trumpet Winsock to go online...
    MS was afraid of the competition and then integrated the GUI...

    Now Linux is in every small device you can imagine, often no GUI needed, but X11 is available,
    and gcc was a free compiler.
    Found a CD with SLS Linux that came with a magazine in 1998 and that was it for me, no going back to MS.
    But Linux is getting ever more bloated .. too, many things that run when I type 'ps avx' I do not really know
    how those work or what those do, dbus (introduced by RatHead) made an ever more complex mess.
    So back to BSD Linux perhaps...
    I like the small micros, PICs now those become ever more powerful
    have integrated ADCs and DACs, all sort of interfaces, PWM out, and PICs are cheap, using more than one
    in one project is no problem.
    And then there is FPGA, make you own processor if you want, all glue hardware is there..

    Was just watching Wimbledon final on TV..
    Am working on some solar project here now, just ordered some extra panels, 300 W extra flexible that
    can also be glued on a boat..
    There is sort of panic about power now in this part of Europe, fear that Russia may cut gas to Europe altogether,
    cannot blame them after all the silly sanctions, but when it starts freezing and no gas no heating
    no nuclear plants (*Germany and over here now also delayed building more) and the water pipes freeze too I see BIG problems.
    Having some electrickety and big battery backups allow you to boil water and use the microwave to cook.
    My garden is big, plenty of space for solar panels, so why not, 30 degrees C predicted for next week..
    If not.. sail away south to where the butter melts in the winter..

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From jlarkin@highlandsniptechnology.com@21:1/5 to pNaonStpealmtje@yahoo.com on Sun Jul 10 10:28:34 2022
    On Sun, 10 Jul 2022 16:53:16 GMT, Jan Panteltje
    <pNaonStpealmtje@yahoo.com> wrote:

    On a sunny day (Sun, 10 Jul 2022 06:31:30 -0700) it happened >jlarkin@highlandsniptechnology.com wrote in ><q1llchhn0sije7a13qp8975vdeioid5qo4@4ax.com>:

    On Sun, 10 Jul 2022 06:52:59 GMT, Jan Panteltje
    <pNaonStpealmtje@yahoo.com> wrote:

    On a sunny day (Sat, 09 Jul 2022 07:05:56 -0700) it happened >>>jlarkin@highlandsniptechnology.com wrote in >>><ob2jchpddsm0s031bmckdibdn1ge5fghfk@4ax.com>:

    On Sat, 09 Jul 2022 10:18:31 GMT, Jan Panteltje >>>><pNaonStpealmtje@yahoo.com> wrote:

    On a sunny day (Fri, 8 Jul 2022 15:00:19 -0000 (UTC)) it happened "Don" >>>>><g@crcomp.net> wrote in <20220708a@crcomp.net>:

    Excellent tear-down, Jan! Your link to the datasheet needs an "f" at the >>>>>>end to seamlessly work:
    <https://www.dianyuan.com/upload/community/2017/06/21/1498016857-45025.pdf>

    Thanks for correcting the link,
    seems triple click from Chromium does not work very well.
    .. was reading in newsletter.gsb.bund.de that the lastest Chrome now has 14 new security issues ..
    need to upgrade... ?? ;-)
    8. Google Chrome: 14 Schwachstellen
    Bericht und Anleitung zum Patchen bei Chip:
    https://www.chip.de/news/Google-Chrome-Nutzer-aufgepasst-Neues-Update-schliesst-14-Sicherheitsluecken_184310432.html





    Firefox lately wants to eat my trusty Win7 PC. It opens something like >>>>30 processes and uses all my ram. There is an about:config fix for >>>>that. There seems to be a new version every week or so and some of the >>>>fixes need to be redone. Nuisance.

    Welcome to the age of bloat. I wonder how much ram the Star Trek >>>>computer used.

    Ironic that things like wall warts keep getting simpler and more >>>>reliable and software goes the opposite way.

    Who was it that said: "Things should be as simple as possible, but not simpler than that"?

    Einstein, about theories.

    I still use my own Usenet newsreader I wrote around year 2000 or so.
    As long as they do not change spec its fine.

    All the hacking and security hype changes internet into a stress zone.

    IBM made a tragic mistake when they selected Microsoft and Intel for
    the PC.


    Not sure that was bad..
    what changed things for the worse was when Microsoft integrated the GUI with the multitasking kernel.


    NT was good, authored by the VMS guy, until morons broke it. That's in
    the book: Showstopper

    But really, x86 is barbaric. When in doubt (code, data, stack,
    buffers) execute it.


    I remember running win 3.1 on top of DRDOS (Digital Research DOS) and Trumpet Winsock to go online...
    MS was afraid of the competition and then integrated the GUI...

    Now Linux is in every small device you can imagine, often no GUI needed, but X11 is available,
    and gcc was a free compiler.
    Found a CD with SLS Linux that came with a magazine in 1998 and that was it for me, no going back to MS.
    But Linux is getting ever more bloated .. too, many things that run when I type 'ps avx' I do not really know
    how those work or what those do, dbus (introduced by RatHead) made an ever more complex mess.
    So back to BSD Linux perhaps...
    I like the small micros, PICs now those become ever more powerful
    have integrated ADCs and DACs, all sort of interfaces, PWM out, and PICs are cheap, using more than one
    in one project is no problem.
    And then there is FPGA, make you own processor if you want, all glue hardware is there..

    Was just watching Wimbledon final on TV..
    Am working on some solar project here now, just ordered some extra panels, 300 W extra flexible that
    can also be glued on a boat..
    There is sort of panic about power now in this part of Europe, fear that Russia may cut gas to Europe altogether,
    cannot blame them after all the silly sanctions, but when it starts freezing and no gas no heating
    no nuclear plants (*Germany and over here now also delayed building more) and the water pipes freeze too I see BIG problems.
    Having some electrickety and big battery backups allow you to boil water and use the microwave to cook.
    My garden is big, plenty of space for solar panels, so why not, 30 degrees C predicted for next week..
    If not.. sail away south to where the butter melts in the winter..

    We can survive here without power for a while; it never freezes. I
    have a little propane BBQ.

    We had a few days without power after the 1989 earthquake. First thing
    was an ice cream party with the neighbors.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jan Panteltje@21:1/5 to jlarkin@highlandsniptechnology.com on Mon Jul 11 06:56:10 2022
    On a sunny day (Sun, 10 Jul 2022 10:28:34 -0700) it happened jlarkin@highlandsniptechnology.com wrote in <8g2mch1h56p79ppg617ltbpqnhi334vofv@4ax.com>:

    We can survive here without power for a while; it never freezes. I
    have a little propane BBQ.

    We had a few days without power after the 1989 earthquake. First thing
    was an ice cream party with the neighbors.

    Yes, fridge needs power too...

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jan Panteltje@21:1/5 to jlarkin@highlandsniptechnology.com on Wed Jul 13 14:47:29 2022
    On a sunny day (Sun, 10 Jul 2022 10:28:34 -0700) it happened jlarkin@highlandsniptechnology.com wrote in <8g2mch1h56p79ppg617ltbpqnhi334vofv@4ax.com>:

    We can survive here without power for a while; it never freezes. I
    have a little propane BBQ.

    Solar panels arrived today. amazing everything is in short supply but these not..
    Three 100 W flexible panels so 300 W on the grass in the garden, quite a bit of power.
    Came with cables and charge controller...

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From jlarkin@highlandsniptechnology.com@21:1/5 to pNaonStpealmtje@yahoo.com on Wed Jul 13 08:42:38 2022
    On Wed, 13 Jul 2022 14:47:29 GMT, Jan Panteltje
    <pNaonStpealmtje@yahoo.com> wrote:

    On a sunny day (Sun, 10 Jul 2022 10:28:34 -0700) it happened >jlarkin@highlandsniptechnology.com wrote in ><8g2mch1h56p79ppg617ltbpqnhi334vofv@4ax.com>:

    We can survive here without power for a while; it never freezes. I
    have a little propane BBQ.

    Solar panels arrived today. amazing everything is in short supply but these not..
    Three 100 W flexible panels so 300 W on the grass in the garden, quite a bit of power.
    Came with cables and charge controller...


    Europe may be facing a serious energy shortage this winter. Some solar
    and batteries and LED lighting would help, but it won't keep your
    house warm.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Anthony William Sloman@21:1/5 to jla...@highlandsniptechnology.com on Wed Jul 13 19:03:47 2022
    On Thursday, July 14, 2022 at 1:42:47 AM UTC+10, jla...@highlandsniptechnology.com wrote:
    On Wed, 13 Jul 2022 14:47:29 GMT, Jan Panteltje <pNaonSt...@yahoo.com> wrote:
    On a sunny day (Sun, 10 Jul 2022 10:28:34 -0700) it happened jla...@highlandsniptechnology.com wrote in <8g2mch1h56p79ppg6...@4ax.com>:

    We can survive here without power for a while; it never freezes. I
    have a little propane BBQ.

    Solar panels arrived today. amazing everything is in short supply but these not..
    Three 100 W flexible panels so 300 W on the grass in the garden, quite a bit of power.
    Came with cables and charge controller...

    Europe may be facing a serious energy shortage this winter. Some solar
    and batteries and LED lighting would help, but it won't keep your
    house warm.

    That depends on the house. Super-insulated houses don't need much heat at all to stay warm.

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

    "The house is heated primarily by waste heat from appliances and the occupants"

    --
    Bill Sloman, Sydney

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)