Digest for sci.electronics.repair@googlegroups.com - 5 updates in 2 topics

"Wolfgang Allinger" <all2001@spambog.com>: Jun 14 11:15AM -0400

---------8x--------------
\ Brillen_Baendchen.txt all20220614
 
 
Brillen_Bändchen
 
Nachdem mal wieder so ein Halteseil (Brillen_Bändchen) zerrottet ist
und der übliche Plastik/Gummi O-Ring sich aufgelöst hat und ich neue
Bändchen in PY bisher nicht gefunden habe, kam mir beim Duschen
der rettende Einfall: (ha ich kann schon fast so Monstersätze wie Cäsar :)
 
DIY!
 
man nehme 80-90 cm 1-1,5 mm Seil Nylon/PE/PPE etc... (1)(2)(3)
an beide Enden eine verstellbare Schlaufe machen,
feddich ist ein feines 'laneyard' für die Brille!
 
So ist die Brille immer griffbereit und kann nicht auf den Boden fallen.
Ich mache übrigens die Schlaufen am Bügel nahe an den Gläsern,
wenns geht zwischen Glas und Scharnier.
So kann man die Brille auch zusammengeklappt tragen.
Etwas ungewöhnlich, aber sehr praktisch.
 
Mir gefällt es mit dem scaffold-knot am Besten :)
 
 
Slipknots:
 
https://www.netknots.com/rope_knots/scaffold-knot
https://www.netknots.com/rope_knots/slip-knot
https://www.netknots.com/rope_knots/running-bowline
 
PS.
On Topic:
SEGELN, klaro, Seil und Knoten..., Seemansgarn fein gesponnen
MAMPF, so ist die Brille sicher und kann beim Kochen nicht in den Topf fallen :)
ELECTRONICS, da guckste wie de guckst beim Löten, reparieren, studieren...
 
FF Fiel Fährgnühgähn!
 
 
(1) für den Elektroniker latürnich Bindegarn!
(2) für die anderen: Maurerschnur, Takelgarn...
(3) Geflochten ist besser und schöner, aber teurer als gedrehtes Garn
 
 
 
---------x8--------------
 
Saludos (an alle Vernünftigen, Rest sh. sig)
Wolfgang
 
--
Ich bin in Paraguay lebender Trollallergiker :) reply Adresse gesetzt!
Ich diskutiere zukünftig weniger mit Idioten, denn sie ziehen mich auf
ihr Niveau herunter und schlagen mich dort mit ihrer Erfahrung! :p
(lt. alter usenet Weisheit) iPod, iPhone, iPad, iTunes, iRak, iDiot
"Wolfgang Allinger" <all2001@spambog.com>: Jun 14 11:45AM -0400

in newsgroup: /sci/electronics/repair sci.electronics.repair
topic : Brillenbaendchen
 
 
> ---------8x--------------
> \ Brillen_Baendchen.txt all20220614
 
 
Sorry, wrong group, forgot how to make a cancel :(
 
 
Saludos (an alle Vernünftigen, Rest sh. sig)
Wolfgang
 
--
Ich bin in Paraguay lebender Trollallergiker :) reply Adresse gesetzt!
Ich diskutiere zukünftig weniger mit Idioten, denn sie ziehen mich auf
ihr Niveau herunter und schlagen mich dort mit ihrer Erfahrung! :p
(lt. alter usenet Weisheit) iPod, iPhone, iPad, iTunes, iRak, iDiot
Turd Ferguson <tferg@snl.com>: Jun 13 05:26PM -0400

On 6/12/2022 9:24 PM, bob prohaska wrote:
> looks nicely made, it would be pleasing to salvage it.
 
> Thanks for writing!
 
> bob prohaska
 
https://www.powerstream.com/ac-12125.htm
bob prohaska <bp@www.zefox.net>: Jun 14 12:48AM


>> Thanks for writing!
 
>> bob prohaska
 
> https://www.powerstream.com/ac-12125.htm
 
That's the unit I have. The adjuster that I thought might be for
voltage seems to have no effect, leaving the no-load output at
11.99 volts and loaded (auto tail light bulb) at 11.3. That's too
low for my application, which requires at least 13.5 volts to be
useful. Maybe I'm doing something wrong, but it looks as if my luck
has run out.
 
Thanks for writing,
 
bob prohaska
Tom Biasi <tombiasi@optonline.net>: Jun 14 12:23AM -0400

On 6/12/2022 9:24 PM, bob prohaska wrote:
> looks nicely made, it would be pleasing to salvage it.
 
> Thanks for writing!
 
> bob prohaska
 
Its not a battery charger its a very well regulated 12 volt supply. Do
yourself and the batteries a favor and get a battery charger.
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Digest for sci.electronics.repair@googlegroups.com - 5 updates in 2 topics

Tom Bray <tbray@umich.edu>: Feb 22 07:18AM -0800

Anyone know of someone anywhere near SE Michigan that does repairs on pro reel to reel tape decks?
Jeff Liebermann <jeffl@cruzio.com>: Feb 21 10:54AM -0800

On Sun, 20 Feb 2022 19:30:53 -0800, Jeff Liebermann <jeffl@cruzio.com>
wrote:
 
>On Sun, 20 Feb 2022 12:28:19 -0700, Ken Blake <Ken@invalidinvalid.com>
>wrote:
 
>>I can't find my electronic remote.
 
If you own a Roku remote that has a built in speaker:
<https://support.roku.com/article/211865427>
you can push a button on the base unit and the remote will make a
noise.
 
I use a Roku remote app on my Android phone.
<https://play.google.com/store/search?q=roku%20remote&c=apps>
 
If you're using the Roku app, you can use it to find the remote:
Settings -> Remotes & devices -> Remotes
-> [select_remote] -> Find remote
 
If I misplace the phone, I use "find my device" to locate the phone
(and the remote):
<https://www.google.com/android/find?u=0>
No remote control to get lost.
 
I have some phosphorescent stick on "dots" that I put on things that
tend to be chronically lost. Turn off the lights, wave a UV
flashlight around, and I can usually find it by the green glow.
<https://www.ebay.com/itm/403427901234>
 
 
--
Jeff Liebermann jeffl@cruzio.com
PO Box 272 http://www.LearnByDestroying.com
Ben Lomond CA 95005-0272
Skype: JeffLiebermann AE6KS 831-336-2558
Clifford Heath <no.spam@please.net>: Feb 22 09:51AM +1100

On 21/2/22 6:28 am, Ken Blake wrote:
> I can't find my electronic remote.
> Where can it be?
 
If it was nearby, it wouldn't be remote
Mike Coon <gravity@mjcoon.plus.com>: Feb 21 10:53PM

In article <ccd71h9cg2c2graml1kib2k38oocbmdkte@4ax.com>,
legg@nospam.magma.ca says...
 
> What CAN you find?
 
> Start there.
 
> RL
 
I shot my arrow in the air -
It fell to earth I know not where -
I lose all my bloody arrows that way...
amdx <amdx@knology.net>: Feb 22 08:16AM -0600

On 2/21/2022 7:38 AM, amdx wrote:
 
> Ours went missing last night also.
 
> Maybe there is a remote convention.
 
>                                    Mikek
 
 I found it shortly after my post, my wife had folded into her work out
mat.
 
                                                        Mikek
 
 
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Digest for sci.electronics.repair@googlegroups.com - 3 updates in 2 topics

amdx <amdx@knology.net>: Feb 11 03:37PM -0600

On 2/10/2022 3:54 AM, Jake T wrote:
> quick, easy, and effective solution.  I wouldn't think the clear, two
> part epoxy would affect Q or tuning, or would it?
 
> Thank you!
 
 I have used polystyrene dissolved in Acetone. Best if you can find
crystal styrene like used in parts drawers.
 
It will dissolve... slowly.
 
But I started with polystyrene foam dissolved in acetone.
 
 I have a 4" coil I used this on well over 10 years ago and it it still
holding up.
 
                                   Mikek
 
 
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Jeff Liebermann <jeffl@cruzio.com>: Feb 11 08:08PM -0800

On Thu, 10 Feb 2022 04:54:15 -0500, Jake T <jaketbone@steak.com>
wrote:
 
>easy, and effective solution. I wouldn't think the clear, two part
>epoxy would affect Q or tuning, or would it?
 
>Thank you!
 
If your toroidal inductors are wound that loose, you'll have damage in
shipping, mostly from the enamel coating falling off from vibration.
Some kind of conformal coating will help.
<https://www.chemtronics.com/the-ultimate-guide-to-conformal-coating>
Before selecting any coating, lookup the loss tangent values and see
if it will get hot due to RF losses. If you're not sure, coat a PCB
with the coating, let it dry, and bake it in a microwave oven. If it
tends to crumble, burn, melt, or otherwise self destruct, find
something with less loss. 1kW at 2.4GHz is a rather brutal test for a
coating that only needs to work up to 30MHz, but is quick and easy. If
it survives at 2.4GHz, it will work at 30MHz.
 
If the BP filter is designed using high Q inductors and mechanical
vibration detunes these inductors, your design is faulty and you will
have other problems, such as multiple problems caused by water. I
used to design marine radios and quickly learned that high-impedances,
high-Q tuned circuits, and high voltages were really bad ideas in a
marine environment. So, we designed most everything using low
impedances, low-Q tuned circuits, and low voltages. The result was
that the radio worked nicely when wet and did not require any kind of
coating. Such coatings are a mess to apply and handle. Rework is
either difficult or impossible.
 
Here's an example from about 1980. This is the Intech Inc Mariner
3600 150w PEP SSB HF marine radio:
<https://ce3dr.files.wordpress.com/2016/12/img_1630.jpg>
<https://ce3dr.files.wordpress.com/2016/12/img_1631.jpg>
<https://ce3dr.files.wordpress.com/2016/12/img_1632.jpg>
<https://www.hellocq.net/forum/read.php?tid=226493>
The large board full of toroidal inductors are the TX/RX LP (low pass)
filters. We didn't use or need BP (band pass) filters. Notice the
lack of any conformal coating. I will admit that we did use some wax
to keep the synthesizer VCO from becoming microphonic. It was also
one of the few circuits that were sensitive to moisture.
 
Good luck.
 
--
Jeff Liebermann jeffl@cruzio.com
PO Box 272 http://www.LearnByDestroying.com
Ben Lomond CA 95005-0272
Skype: JeffLiebermann AE6KS 831-336-2558
"Peter W." <peterwieck33@gmail.com>: Feb 11 08:48AM -0800

https://www.youtube.com/watch?v=EL3zzosjQ0c
 
https://elektrotanya.com/heathkit_im-2202_portable_dmm_sm.pdf/download.html
 
Should about do it.
 
Enjoy!
 
Peter Wieck
Melrose Park, PA
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