Digest for sci.electronics.repair@googlegroups.com - 25 updates in 2 topics

Jeff Liebermann <jeffl@cruzio.com>: Nov 06 08:59AM -0800

On Sun, 5 Nov 2017 22:36:43 -0800, "David Farber"
>http://www.vcclite.com/_pdf/Neon%20Indicator%20Lamps_7_&_8.pdf
 
>A picture of a similar tester is here.
>http://www.acehardware.com/product/index.jsp?productId=3099752
 
The common NE-2 neon lamp will work just fine. I've never bothered to
tear one apart so I don't know what's inside. Looks like there are
different design schemes:
<http://www.giangrandi.ch/electronics/neon/simple.html>
<http://www.electro-tech-online.com/threads/information-about-electric-tester-circuit.132363/#post-1104807>
<http://www.marcspages.co.uk/pq/4511.htm>
<http://www.electro-tech-online.com/attachments/sch-1a-png.87460/>
 
I doubt that the NE-2 lamp is the problem. My guess(tm) is something
fell apart or came loose inside. Probably a bad crimp.
 
 
--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
"J.B. Wood" <arl_123234@hotmail.com>: Nov 06 12:37PM -0500

On 11/06/2017 01:36 AM, David Farber wrote:
> that illuminate according to the condition of the 120VAC outlet. The neon
> light that illuminates indicating a good ground is not lighting up anymore.
> Will this replacement neon light work properly for this application?
 
Hello, and these testers (with or without GFCI test capability) are very
simple devices consisting of three neon lamps with ballast resistors
connected line-neutral, line-ground and neutral-ground. Your main
problem I think is that these testers usually are encased in a molded
liquid-resistant rubber-like enclosure. Buying a replacement unit might
be more feasible. Also, depending on the tester manufacturer, the
pattern of of the 3 lamps (on or off) for the same outlet condition can
be different. Sincerely,
 
 
--
J. B. Wood e-mail: arl_123234@hotmail.com
"David Farber" <farberbear.unspam@aol.com>: Nov 06 10:01AM -0800

Jeff Liebermann wrote:
> <http://www.electro-tech-online.com/attachments/sch-1a-png.87460/>
 
> I doubt that the NE-2 lamp is the problem. My guess(tm) is something
> fell apart or came loose inside. Probably a bad crimp.
 
Hi Jeff,
 
I opened it up and the crimps and resistors are good. Do you have any idea
what the lamp's breakdown voltage specification indicates? According to the
datasheet, the NE-2 has a breakdown voltage of 65VAC. The high brightness
bulbs have a higher breakdown voltage of 95VAC.
 
Thanks for your reply.
--
David Farber
Los Osos, CA
Vic Smith <thismailautodeleted@comcast.net>: Nov 06 08:40AM -0800

>>I never replace brake fluid unless I've got the system open.
> I generally did when doing any major brake work (drums, rotors, pads
>or shes) - just s thorough bleed.
 
I haven't touched any part of my brakes for 4 years.
clare@snyder.on.ca: Nov 06 11:42AM -0500

>honestly can't give you a valid reason for doing so other than I like
>the color better.
 
>The guy that gets my old one with 38k miles is getting a real cream puff.
I've owned ONE new car in my life (actually a truck) - 1976 Dodge
Ramcharger SE.
RS Wood <rswood@is.invalid>: Nov 06 04:43PM

Ed Pawlowski wrote:
 
> Intelligent people question
> Arrogant people think the know everything.
 
Did you even *read* that paper?
Or did you just look at the pretty pictures?
 
It didn't cover ring complexity any more than a high-school student would.
 
That's a fact.
 
If you read the paper, then show me where in that paper it covered
*anything* the least bit complex about piston rings?
 
I'm waiting....
clare@snyder.on.ca: Nov 06 11:44AM -0500

>not hesitate to take that brand of car to him as he knows it well. Of
>course dealers do work on all brands but they have lots of expertise on
>the core brand.
Ford and Chrysler dealers
I worked for amc/Mazda/ Jeep and Toyota.
clare@snyder.on.ca: Nov 06 11:46AM -0500

>> "god complex" only exceded by orthopedic surgeons.
 
>Intelligent people question
>Arrogant people think the know everything.
I've always said it's what you learn AFTER you know it all that
REALLY counts - - -
RS Wood <rswood@is.invalid>: Nov 06 04:46PM

RS Wood wrote:
 
> I never said that the design of *anything* is super complex at the stage of
> designing the perfect system. I even said that a spark plug is complex at
> that level.
 
Correction.
 
"I never said that the design of *anything* /isn't/ super complex at the
stage of designing the perfect system."
clare@snyder.on.ca: Nov 06 11:49AM -0500

On Mon, 6 Nov 2017 08:25:50 -0800, The Real Bev <bashley101@gmail.com>
wrote:
 
 
>I'm a lousy housekeeper. I regard dust as a protective coating. What
>kind of people find brake pad dust objectionable? What kind of people
>even notice it?
 
People with nice shiney wheels???
 
>> Friction Coefficient Identification System for Brake Linings
>> <http://standards.sae.org/j866_200204/>
 
>TMI here!
The friction between the pads and bare steel rotors is much
different than the friction between the pads and the pad material
deposited on the pads. The latter is the higher.
RS Wood <rswood@is.invalid>: Nov 06 04:49PM

The Real Bev wrote:
 
> I regard dust as a protective coating.
 
That was a good one.
Mind if I borrow it when my wife asks me to clean up the house?
RS Wood <rswood@is.invalid>: Nov 06 04:56PM


> I've always said it's what you learn AFTER you know it all that
> REALLY counts - - -
 
Did any of you actually *read* that paper?
 
I did.
 
It doesn't say what you imply it says.
 
Show me the slightest bit of technical on-topic merit that paper had with
respect to how piston rings are better now than they were in the days of
yore.
 
There isn't a *single* statement in that *entire* paper that backs up
*anything* you said it did.
 
Nothing.
And you expect me to believe because I'm an engineer and you're a mechanic
that you know more than I do about basic adult logic?
 
The fact of what we're trained in has *nothing* to do with the way our
brains think.
 
You think a high school level paper proves *something* about how piston
rings are designed better today than in yesteryear.
 
And yet, there's *nothing* in that entire paper about what you imply it
proves. Nothing.
 
Let's give up because you think I'm stupid and I think your paper doesn't
prove what you think it proves.
 
I think you need a few hundred courses in basic adult logic.
And you think I need all the years of experience that you have.
 
Let's leave it at that.
Ed Pawlowski <esp@snet.net>: Nov 06 11:57AM -0500

On 11/6/2017 10:20 AM, RS Wood wrote:
 
> My point is only that people spend time watching TV so they can't say that
> taking your sweet time doing an oil change is wasted time if they're
> wasting time watching "As the World Turns" all day.
 
People that do not have a TV tend to have a superiority complex. Sure,
95% of it is crap, but there are some excellent shows on History,
Discovery, Science that will broaden your horizons and educate you about
the rest of the world.
RS Wood <rswood@is.invalid>: Nov 06 05:01PM

> The friction between the pads and bare steel rotors is much
> different than the friction between the pads and the pad material
> deposited on the pads. The latter is the higher.
 
If the friction rating of a brake pad is too much information for someone
choosing a brake pad ...
 
... then I have to wonder ... if friction isn't important ...
 
What kind of primary logic are they using to choose brake pads if it's not
friction?
 
Oh... I see. I get it.
Marketing bullshit.
 
I give up when someone complains that the friction coefficient of a brake
pad is too much information when choosing a brake pad.
 
It isn't a logical thought process.
I can't fix that. Even on the Usenet.
I just can't.
Vic Smith <thismailautodeleted@comcast.net>: Nov 06 09:02AM -0800


>I've probably used one about twenty times in forty years.
 
>My beef is when people use them on "my stuff" when they have a perfectly
>good socket wrench in the truck just 100 feet away.
 
I don't have any crescent wrenches, and would never buy one.
I used them as kid on my bicycles.
The last time I used one was when I was working for a plumber 35 years ago, and that's what
he used for valve compression fittings. I couldn't fault him for that, but if I carried my
own tools on that job I would have brought some open end wrenches with me.
RS Wood <rswood@is.invalid>: Nov 06 05:04PM

Ed Pawlowski wrote:
 
> 95% of it is crap, but there are some excellent shows on History,
> Discovery, Science that will broaden your horizons and educate you about
> the rest of the world.
 
Ask me *anything* about "history, discovery, science, and the rest of the
world".
 
What makes you think that only watching TV will gain you that information?
Ed Pawlowski <esp@snet.net>: Nov 06 12:05PM -0500

On 11/6/2017 11:56 AM, RS Wood wrote:
> that you know more than I do about basic adult logic?
 
> The fact of what we're trained in has *nothing* to do with the way our
> brains think.
 
No one can teach you anything as you know everything.
RS Wood <rswood@is.invalid>: Nov 06 05:08PM

Vic Smith wrote:
 
> The last time I used one was when I was working for a plumber 35 years ago, and that's what
> he used for valve compression fittings. I couldn't fault him for that, but if I carried my
> own tools on that job I would have brought some open end wrenches with me.
 
Yup. The ones I see using them are the fix-it guys that come to the house,
less and less lately, as I do more and more since I have all the time in
the world now.
 
I taught my kids and grandkids to use the right tool for the right job.
 
For example, a screwdriver is for screws. Nothing else.
A pair of pliers is for things that you don't have wrenches for.
 
And I can't think of any good reason most of the time for an adjustable
wrench, although it's valid if you're hanging upside down out of a hotair
balloon where the correct socket or open-end or box wrench is down on the
ground next to the parts truck.
clare@snyder.on.ca: Nov 06 12:10PM -0500

On Mon, 6 Nov 2017 08:37:17 -0800, The Real Bev <bashley101@gmail.com>
wrote:
 
 
>They claimed that power windows would work long enough to allow them to
>be rolled down. Do they assume it would take minutes for the electrical
>system to short out? Is that reasonable?
 
12 volt systems will NOT "short out" in water. I know guys that used
old heater motors as electric trolling motors. Being water cooled they
can run an old 6 volt motor on 24 without burning them out and get
lots of power out of them.
clare@snyder.on.ca: Nov 06 12:11PM -0500

On Mon, 06 Nov 2017 08:40:36 -0800, Vic Smith
>> I generally did when doing any major brake work (drums, rotors, pads
>>or shes) - just s thorough bleed.
 
>I haven't touched any part of my brakes for 4 years.
 
 
I "service" my disc brakes at least once a year.
RS Wood <rswood@is.invalid>: Nov 06 05:12PM

Ed Pawlowski wrote:
 
> No one can teach you anything as you know everything.
 
You think that because I asked you to think logically like an adult would.
 
You think I'm stupid because I don't have your experience.
You think everything you say is right because you have that experience.
 
OK. Let's just leave it at that, because I *read* that paper, and it
doesn't say what you and the other guy (I don't look at names) claim it
says.
 
So you have experience on your side.
I have simple factual logic on mine.
clare@snyder.on.ca: Nov 06 12:15PM -0500


>> The fact of what we're trained in has *nothing* to do with the way our
>> brains think.
 
>No one can teach you anything as you know everything.
Darn engineers think everything has to be "logical" - and that means
"their logic" - which in many cases isn't at all "logical" when you
get down to brass tacks because they are basing their "logic" on false
pretexts. Their initial thesis is wrong and they just try to make
reality fit their warped reality.
RS Wood <rswood@is.invalid>: Nov 06 05:18PM


>>I haven't touched any part of my brakes for 4 years.
 
> I "service" my disc brakes at least once a year.
 
I admit, I don't touch mine all that often.
 
When the dash indicates the sensor tripped, I generally pop the vehicle
with all four wheels in the air and rotate the wheels and check if it's the
front or rear (it's almost always the front for the obvious reasons but my
dash doesn't discriminate).
 
I chalk that operation up to a rotation, and then I order the PBS pads and
sensor, and when they come in, I repeat the process sans rotation.
 
Once in a blue moon, I admit less often than I should, I bleed the brakes.
 
At least I use the right tools for bleeding, and not a normal open-end
wrench, and, heaven forbid, not a crescent wrench!
 
But I admit I can go five years without bleeding while I realize that's
twice as long as I should go (but I live in a dry area if that's any
consolation and the bimmer has a nice screw-top cap on the MC).
RS Wood <rswood@is.invalid>: Nov 06 05:24PM

> get down to brass tacks because they are basing their "logic" on false
> pretexts. Their initial thesis is wrong and they just try to make
> reality fit their warped reality.
 
You should give me credit for *reading* the paper someone referenced (I
don't look at whom I'm responding to - I just respond to what they say).
 
The paper was garbage for what it was supposed to say.
That's a fact.
 
But nonetheless, I get your point which is that you think you know
everything because you have seen everything in your years of experience
that I don't (and never will) have.
 
You think that I am stupid because I try to think logically about
everything, which means that I will sometimes be wrong, such that, overall,
it seems that the consensus here might be as bad as:
 
1. I'm wrong that FWD were not built to handle well 365 days a year,
2. I'm wrong on slotted rotors braking no better than solid in street use,
3. I'm wrong on piston rings being *proven* to be far better nowadays,
4. I'm wrong on both the fact of and the measurement of rotor warp,
5. I'm wrong on (insert pet peeve here).
 
The good news is that this thread was about something else, and not those
things, where the one GREAT thing that came out of this thread was you gave
me a better understanding of WHY engines last forever nowadays, as compared
to yesteryear.
 
In fact, just the carb-to-EFI knowledge learned from you is a diamond!
It all made logical sense!
 
Illogical things are unsettling to me (like Marketing Bullshit is).
Things that make logical sense, give me an immense satisfaction.
Vic Smith <thismailautodeleted@comcast.net>: Nov 06 10:03AM -0800

>>>or shes) - just s thorough bleed.
 
>>I haven't touched any part of my brakes for 4 years.
 
> I "service" my disc brakes at least once a year.
 
Sure, so do I. But I don't call that "service." I call it "looking at pad wear."
I sure don't open the MC reservoir. That would expose the fluid to more air than it's seen
in about 20 years of not opening it. And we all know, brake fluid if "hygroscopic."
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