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Re: Soldered connections.

Path csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From "Carlos E.R." <robin_listas@es.invalid>
Newsgroups comp.os.linux.misc, alt.comp.os.windows-11
Subject Re: Soldered connections.
Date Wed, 3 Sep 2025 13:45:10 +0200
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Cross-posted to 2 groups.

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On 2025-09-03 08:03, c186282 wrote:
> On 9/2/25 5:22 PM, Charlie Gibbs wrote:
>> On 2025-09-01, The Natural Philosopher <tnp@invalid.invalid> wrote:
>>
>>> On 01/09/2025 12:34, Carlos E.R. wrote:
>>>
>>>> I believe well done soldered joints reduce the resistance.
>>>
>>> It depends. Solder is more resistive than copper, but if you use plenty
>>> of it.
>>>
>>> Apropos of nothing I once connected a Shottky diode across a brushed DC
>>> motor to clamp RF spikes, and accidentally soldered it the wrong way
>>> round...it got very hot, smoked and *melted all the solder*.
>>>
>>> To my surprise, it survived...
>>
>> I've been phasing out the 50-watt PAR20 halogen lamps that are all
>> over our house, replacing burned-out units with 7-watt LED equivalents.
>> The halogens produce beautiful light, but they run hot as hell.
>> A common failure mode is that they unsolder their own bases.
> 
>    Halogens run DANGEROUSLY hot !
> 
>    DO make nice light, but ...
> 
>    Stick to LED from now on.
> 
>    Have yet to see a good study about the
>    human perceptual diff between old 'analog'/
>    'filament', light sources and LEDS. The LEDs
>    FAKE it, but the spectrum is NOT very linear,
>    lots of peaks and valleys.
> 
>    Can human perceptions SEE that ???
> 
>    Not OUTRIGHT, but maybe on more subtle levels.
> 
>    How can that affect us ?

As a difficulty to perceive colours, for instance.

Most LEDs have a CRI of 80. I just have one wtih 90, but it is also too 
yellow.

There is another figure that is a better indicator than the CRI, but it 
is seldom used.

All my house is LED, but I keep three lamps with halogens, for ocasional 
use.

-- 
Cheers, Carlos.

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Thread

Soldered connections. "Carlos E.R." <robin_listas@es.invalid> - 2025-09-01 11:58 +0200
  Re: Soldered connections. c186282 <c186282@nnada.net> - 2025-09-01 06:30 -0400
    Re: Soldered connections. The Natural Philosopher <tnp@invalid.invalid> - 2025-09-01 12:18 +0100
      Re: Soldered connections. rbowman <bowman@montana.com> - 2025-09-01 19:43 +0000
    Re: Soldered connections. "Carlos E.R." <robin_listas@es.invalid> - 2025-09-01 13:34 +0200
      Re: Soldered connections. The Natural Philosopher <tnp@invalid.invalid> - 2025-09-01 12:43 +0100
        Re: Soldered connections. "Carlos E.R." <robin_listas@es.invalid> - 2025-09-01 14:13 +0200
        Re: Soldered connections. Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-09-02 21:22 +0000
          Halogen lamps. [Was: Soldered connections.] "Carlos E.R." <robin_listas@es.invalid> - 2025-09-03 00:36 +0200
            Re: Halogen lamps. [Was: Soldered connections.] Peter Johnson <peter@parksidewood.nospam> - 2025-09-03 15:03 +0100
          Re: Soldered connections. c186282 <c186282@nnada.net> - 2025-09-03 02:03 -0400
            Re: Soldered connections. rbowman <bowman@montana.com> - 2025-09-03 08:19 +0000
            Re: Soldered connections. "Carlos E.R." <robin_listas@es.invalid> - 2025-09-03 13:45 +0200
            Re: Soldered connections. Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-09-04 03:28 +0000
      Re: Soldered connections. c186282 <c186282@nnada.net> - 2025-09-01 08:00 -0400
        Re: Soldered connections. "Carlos E.R." <robin_listas@es.invalid> - 2025-09-01 14:16 +0200
      Re: Soldered connections. Lars Poulsen <lars@cleo.beagle-ears.com> - 2025-09-01 19:28 +0000
        Re: Soldered connections. "Carlos E.R." <robin_listas@es.invalid> - 2025-09-01 21:49 +0200
  Re: Soldered connections. The Natural Philosopher <tnp@invalid.invalid> - 2025-09-01 11:38 +0100
    Re: Soldered connections. "Carlos E.R." <robin_listas@es.invalid> - 2025-09-01 13:41 +0200
      Re: Soldered connections. The Natural Philosopher <tnp@invalid.invalid> - 2025-09-01 13:32 +0100
      Re: Soldered connections. Nuno Silva <nunojsilva@invalid.invalid> - 2025-09-02 11:15 +0100
        Storey "Carlos E.R." <robin_listas@es.invalid> - 2025-09-02 12:28 +0200
        Re: Soldered connections. Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-02 21:59 +1000
          Re: Soldered connections. The Natural Philosopher <tnp@invalid.invalid> - 2025-09-02 14:52 +0100
            Re: Soldered connections. c186282 <c186282@nnada.net> - 2025-09-03 00:45 -0400
            Re: Soldered connections. Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 21:17 +1000
              Re: Soldered connections. The Natural Philosopher <tnp@invalid.invalid> - 2025-09-03 12:31 +0100
              Re: Soldered connections. "Carlos E.R." <robin_listas@es.invalid> - 2025-09-03 13:46 +0200
                Re: Soldered connections. Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 22:03 +1000
                Re: Soldered connections. "Carlos E.R." <robin_listas@es.invalid> - 2025-09-03 14:27 +0200
                Re: Soldered connections. Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-09-03 08:19 -0700
              Re: Soldered connections. c186282 <c186282@nnada.net> - 2025-09-03 07:58 -0400
              Re: Soldered connections. Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-09-03 08:03 -0700
          Re: Soldered connections. Graham J <nobody@nowhere.co.uk> - 2025-09-02 15:24 +0100
            Re: Soldered connections. Nuno Silva <nunojsilva@invalid.invalid> - 2025-09-02 17:30 +0100
            Re: Soldered connections. Don_from_AZ <djatechNOSPAM@comcast.net.invalid> - 2025-09-02 09:39 -0700
              Re: Soldered connections. "Carlos E.R." <robin_listas@es.invalid> - 2025-09-02 20:03 +0200
                Re: Soldered connections. Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2025-09-02 11:50 -0700
                Re: Soldered connections. Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 21:27 +1000
                Re: Soldered connections. rbowman <bowman@montana.com> - 2025-09-02 19:27 +0000
                Re: Soldered connections. Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 21:28 +1000
              Re: Soldered connections. Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-09-02 21:22 +0000
                Re: Soldered connections. Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 21:34 +1000
                Re: Soldered connections. c186282 <c186282@nnada.net> - 2025-09-03 07:49 -0400
                Re: Soldered connections. "Carlos E.R." <robin_listas@es.invalid> - 2025-09-03 14:29 +0200
                Re: Soldered connections. "Carlos E.R." <robin_listas@es.invalid> - 2025-09-03 13:51 +0200
            Re: Soldered connections. "Carlos E.R." <robin_listas@es.invalid> - 2025-09-02 20:01 +0200
              Re: Soldered connections. c186282 <c186282@nnada.net> - 2025-09-03 01:30 -0400
                Re: Soldered connections. Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 21:36 +1000
            Re: Soldered connections. c186282 <c186282@nnada.net> - 2025-09-03 01:07 -0400
              Re: Soldered connections. Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-09-04 03:28 +0000
                Re: Soldered connections. "Carlos E.R." <robin_listas@es.invalid> - 2025-09-04 12:00 +0200
                Re: Soldered connections. The Natural Philosopher <tnp@invalid.invalid> - 2025-09-04 11:28 +0100
                Re: Soldered connections. Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-04 22:36 +1000
                Re: Soldered connections. The Natural Philosopher <tnp@invalid.invalid> - 2025-09-04 13:52 +0100
                Re: Soldered connections. "Carlos E.R." <robin_listas@es.invalid> - 2025-09-04 17:53 +0200
                Re: Soldered connections. rbowman <bowman@montana.com> - 2025-09-04 18:14 +0000
                Re: Soldered connections. c186282 <c186282@nnada.net> - 2025-09-05 03:39 -0400
            Re: Soldered connections. Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 21:20 +1000
          Re: Soldered connections. rbowman <bowman@montana.com> - 2025-09-02 19:24 +0000
            Re: Soldered connections. The Natural Philosopher <tnp@invalid.invalid> - 2025-09-02 20:36 +0100
            Floors [Was: Soldered connections.] "Carlos E.R." <robin_listas@es.invalid> - 2025-09-02 22:03 +0200
              Re: Floors [Was: Soldered connections.] Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 22:12 +1000
            Re: Soldered connections. c186282 <c186282@nnada.net> - 2025-09-03 01:57 -0400
              Re: Soldered connections. The Natural Philosopher <tnp@invalid.invalid> - 2025-09-03 10:14 +0100
            Re: Soldered connections. Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 22:08 +1000
            Re: Soldered connections. Daniel70 <daniel47@somewhere.someplaceelse> - 2025-09-03 22:10 +1000
        Re: Soldered connections. rbowman <bowman@montana.com> - 2025-09-02 19:19 +0000
          Re: Soldered connections. Nuno Silva <nunojsilva@invalid.invalid> - 2025-09-02 22:57 +0100
            Re: Soldered connections. Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2025-09-02 23:55 +0000
  Re: Soldered connections. rbowman <bowman@montana.com> - 2025-09-01 19:39 +0000

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