Digest for sci.electronics.repair@googlegroups.com - 11 updates in 6 topics

tabbypurr@gmail.com: May 26 10:14AM -0700

On Friday, 24 May 2019 00:22:54 UTC+1, tabby wrote:
 
> > > I have a whole pile of cheap meters as well as good ones. They're useful IME.
 
> > Like I said..
 
> clearly not.
 
FWIW I bought them to dot them around in various places where formerly I'd have had to go fetch a nice meter or forego using one at all. They can go where loss or damage are a risk with little concern. They've saved time & enabled quick easy repairs. I don't normally need accuracy or a CAT 3 rating to get something working. They paid back their cost (2.44 each) in a few days IIRC, an ROI that's hard to beat. Any engineer should be able to undersand the utility of that.
 
Yes I require accuracy at times, and have the datrons to do that. These tiddlers are not for those occasions.
 
 
NT
Ralph Mowery <rmowery28146@earthlink.net>: May 26 03:09PM -0400

In article <1e50615d-38e0-4f31-b07b-a2af02c4bfb4@googlegroups.com>,
tabbypurr@gmail.com says...
 
> FWIW I bought them to dot them around in various places where formerly I'd have had to go fetch a nice meter or forego using one at all. They can go where loss or damage are a risk with little concern. They've saved time & enabled quick easy repairs. I don't normally need accuracy or a CAT 3 rating to get something working. They
paid back their cost (2.44 each) in a few days IIRC, an ROI that's hard to beat. Any engineer should be able to undersand the utility of that.
 
> Yes I require accuracy at times, and have the datrons to do that. These tiddlers are not for those occasions.
 
I have 4 or 5 of the 'Free' Harbor Freight metes. Verified them against
a Fluke meter that was verified against some very high accurate lab
gear. The HF meters are not that far off and work fine especially for a
go/no go test. Does it really matter if the house voltage is 120 or 123
volts ? I have on in my truck and some in places around the house as I
don't want to go the shop on the basement for a better meter.
"jfeng@my-deja.com" <jfeng@my-deja.com>: May 27 09:18AM -0700

On Sunday, May 26, 2019 at 12:09:29 PM UTC-7, Ralph Mowery wrote:
> I have 4 or 5 of the 'Free' Harbor Freight metes. Verified them against a
> Fluke meter that was verified against some very high accurate lab gear. The HF
> meters are not that far off and work fine especially for a go/no go test.
 
My HF meters are all pretty accurate, as long as the battery is fresh. My yellow ones do not have any low-battery indicator, so the only hint is when the readings do not make any sense (which may be a challenge for an inexperienced user).
Mike <ham789@netscape.net>: May 21 10:31PM -0700

> I purchased a 3 pack of the model 350 at Costco. Everyone one of them has this issue. 3 months is about right. Put new batteries in all of them and a few months later they all are virtually drained of battery life.
 
> Matt C
 
This is a common problem with the electronic switching.
 
google flashlight parasitic drain
 
A flashlight that's dead when you need it is worthless.
Take 'em back to Costco.
 
Newer flashlights advertise "no parasitic drain".
Get one that explicitly states that. Anything else is a crap shoot.
Look165 <look165@numericable.fr>: May 21 11:36AM +0200

I think NiMH is 1.2V while cells are 1.5V.
 
"Arlen G. Holder" <arlingholder@nospam.net>: May 22 06:49AM

Thanks to purposefully helpful suggestions by rbowman & Clare Snyder in
this thread, we have five potential replacement free mail services to
consider.
 
Moving the on-topic potluck forward, I add value by reporting that I tested
for the team the following five mail services, all of which seem to be
potentially viable as Gmail replacements; however, my assessment is based
only on _preliminary_ tests over the past couple of days only (where time
will tell whether these five mail services are viable Google alternatives).
o GMX <https://www.gmx.com/mail/>
o Proton Mail <https://protonmail.com/>
o Tutanota <https://tutanota.com/>
o Yandex <https://mail.yandex.com/>
o Zoho <https://www.zoho.com/mail/>
 
GMX:
o Unknown storage limit
o Required Mr or Ms gender selection
o Required a first & last name
o Required a country, and, for the USA, a state
o Required a DOB
o Password must be at least 8 characters
o Required a password-recovery selection (SMS or email)
o Required a phone number for SMS verification (but didn't use it???)
o Required captcha (easy fire-hydrant single-pass stuff)
o Doesn't inform you the username is valid until late in the game
 
Proton:
o 500MB storage & 150 messages per day limit
o Allows choice of domain (protonmail.com, protonmail.ch)
o Recovery email is optional
o Doesn't require gender or name or DOB or location or phone, etc.
o Informs you in real time whether the username is taken or available
o Password must be at least 6 characters
o Choice of verification by captcha, email, sms, or donation
o Captcha is easy one-pass fire-hydrant stuff
o Asks to "show notifications" (which you can block or allow)
 
Tutanota:
o 1 GB limit
o Doesn't require gender or name or DOB or location or phone, etc.
o Requires a strong password of undetermined characters (at least 8)
o Tells you the password cannot be reset (so choose wisely, I guess)
o Informs you in real time whether the username is taken or available
o Asks you to write down 64 hex character "recovery code"
 
Yandex:
o Unknown storage limit
o Requires only first name & surname
o Informs you in real time whether the username is taken or available
o Requires a strong password of undetermined characters (at least 8)
o Asks for telephone number but lets you skip in favor of security question
o Allows you to write your own custom security question & custom answer
o Requires a simple Captcha-like typing of screenshot words
 
Zoho
o 5GB storage limit
o Requires only first name & last name
o Username must be more than 6 characters
o Password literally requires 8 letters even if it's much longer than that
o Requires mobile phone number to send SMS verification code
o Accepts free second-line mobile phone software SMS numbers though
o Asks to enable 2FA but you can skip it "for now"
o Save the numeric "user id" which shows up after you create the account
 
If you have data to share to improve the quick summary above, or, if you
know of _other_ free gmail service replacements, please let us know as
Usenet is a potluck where everyone is expected to bring something of value
to share.
The Real Bev <bashley101@gmail.com>: May 22 12:20PM -0700

On 05/22/2019 07:25 AM, rbowman wrote:
> I trust the Russians more than our homegrown Stasi. I've been using
> Kaspersky on my Windows boxes for a long time. If it's stealing my data
> at least it doesn't let other people grab it.
 
The Russian guy who wrote the EBookDroid app provides excellent customer
service for an absolute pittance. We asked him how we could pay more
(apparently paypal doesn't work in Russia), but he said just buy the
'pro' app. He also speaks (or at least writes) excellent English, such
that I wonder if he's just pretending to be Russian.
 
--
Cheers, Bev
"Everyone ought to stop and smell crayons once in a while."
-- DA
rbowman <bowman@montana.com>: May 22 08:25AM -0600

On 05/22/2019 12:49 AM, Arlen G. Holder wrote:
> o Asks for telephone number but lets you skip in favor of security question
> o Allows you to write your own custom security question & custom answer
> o Requires a simple Captcha-like typing of screenshot words
 
Russian collusion! The Russians are coming! Oddly I'm at the point where
I trust the Russians more than our homegrown Stasi. I've been using
Kaspersky on my Windows boxes for a long time. If it's stealing my data
at least it doesn't let other people grab it.
Cursitor Doom <curd@notformail.com>: May 21 10:51PM

On Tue, 21 May 2019 10:20:02 -0400, Ralph Mowery wrote:
 
 
> I think that hydrogen may be the smallest atom, but they often join in
> pairs to make up a larger molicule. Some other atoms that are normally
> gas do the same thing.
 
Oh boy. Where do I start?
 
 
 
--
This message may be freely reproduced without limit or charge only via
the Usenet protocol. Reproduction in whole or part through other
protocols, whether for profit or not, is conditional upon a charge of
GBP10.00 per reproduction. Publication in this manner via non-Usenet
protocols constitutes acceptance of this condition.
Eremita Analogico <LEDITApaolo.carrer@DALNASOlibero.it>: May 27 12:47PM +0200

Il 26/05/2019 17:40, Jeff Liebermann ha scritto:
> If there's no oscillation, and it's not one of the nearby components,
> the likely culprit is a blown 7016. Replacements are available:
> <https://www.ebay.com/sch/i.html?_nkw=7106+a%2Fd>
 
Ok, thanks to all.
I have checked the dual op-amp and the CD4070 and both is ok.
I have checked the capacitor and resistor at pins 38, 39, 40 of 7106
(clock) and the values are correct, BUT if I power on the DMM without
capacitor at pin 38 the display is perfect 00.0 without ghost segments
(but obviously without any A/D conversion).
This is a significant symptom?
Replacing capacitor with another of same value (100p) make always
display corrupted.
I have 3 7106 and I checked with all, same problem.
 
The display is mounted in a small PCB connected to main PCB through a
flat plastic flexible "foil" with argent traces, pressed to pcbs with
the plastic support of small display pcb. The resistence between every
pin of 7106 and pads in small pcb is around 3 ohm.
From small pcb to display there are classical siliconic conductive
strips that I have carefully cleaned, together with plastic flexible foil.
 
Where I can try to found the fault?
Thanks.
tabbypurr@gmail.com: May 26 10:01AM -0700

On Saturday, 25 May 2019 21:42:30 UTC+1, Jeff Liebermann wrote:
> [Quiz] Why are plants green, but LED grow lights produce very little
> green light?
> <https://www.google.com/search?q=LED+grow+lights&tbm=isch>
 
CFLs don't explode or start fires. One thing I've encountered are many people who describe events that are obviously not explosions as explosions.
 
Green plants absorb & use red & blue light. Green light, when growing, is wasted.
 
 
NT
You received this digest because you're subscribed to updates for this group. You can change your settings on the group membership page.
To unsubscribe from this group and stop receiving emails from it send an email to sci.electronics.repair+unsubscribe@googlegroups.com.

No Response to "Digest for sci.electronics.repair@googlegroups.com - 11 updates in 6 topics"

Post a Comment