Digest for sci.electronics.repair@googlegroups.com - 13 updates in 4 topics

oldschool@tubes.com: Aug 22 01:23PM -0400

There are no electronic stores anywhere near me. I cant believe the
prices they want on ebay for this string. (There is some Australia
source selling 12 meters of it for around $7 and wanting $45
shipping.... that's insane).
 
Anyhow, it's just string, but I know it needs to be strong and last for
years. Walmart has a lot of sewing and hobby stuff. Maybe there is a
thick thread that will work.
 
Someone on another forum suggested using fishing line. I know that stuff
is durable, but I know little more, since I dont fish. What guage and
material should I look for? If some of you are fishermen, maybe you
could just tell me what brand name and item number to buy. This cant be
rocket science. It's just string..... But what will work and last?
 
* I am currently needing to replace the dial string on a Zenith Trans
Oceanic radio, as well as the radio in a late 1960s era console stereo.
 
Thanks
dansabrservices@yahoo.com: Aug 22 11:56AM -0700


> * I am currently needing to replace the dial string on a Zenith Trans
> Oceanic radio, as well as the radio in a late 1960s era console stereo.
 
> Thanks
 
I have an entire spool of the stuff. how much do you need?
 
Dan
Jon Elson <jmelson@wustl.edu>: Aug 22 01:59PM -0500

> thick thread that will work.
 
> Someone on another forum suggested using fishing line. I know that stuff
> is durable,
 
Yes, BRAIDED fishing line! There is heavier braided line that is both more
flexible and will grip shafts better.
 
Jon
Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au>: Aug 23 11:28AM +1000


> * I am currently needing to replace the dial string on a Zenith Trans
> Oceanic radio, as well as the radio in a late 1960s era console stereo.
 
> Thanks
 
**I have two, 100 Metre spools of dial cord here. One is 0.4mm and the
other is 0.3mm. How much do you need, which size and where do I post it?
Yes, I am in Australia. I cannot believe that it is unavailable in other
places.
 
https://www.wagneronline.com.au/dial-cord/ps/
 
--
Trevor Wilson
www.rageaudio.com.au
"pfjw@aol.com" <pfjw@aol.com>: Aug 23 05:03AM -0700

Dacron fishing line, available at Wally-World. Take a bit of the old with you and bracket that gauge as there are many gauges and many radios. Each spool you purchase will be a lifetime supply for that gauge.
 
Note that there is considerable flexibility in actual use anyway.
 
Peter Wieck
Melrose Park, PA
Bill Gill <billnews2@cox.net>: Aug 23 08:26AM -0500


> * I am currently needing to replace the dial string on a Zenith Trans
> Oceanic radio, as well as the radio in a late 1960s era console stereo.
 
> Thanks
 
Dental floss.
 
Bill
Tim R <timothy42b@aol.com>: Aug 23 06:29AM -0700

Braided anywhere from 30 - 50 pound test is what I'd look for (though I'm not an expert.)
 
Avoid monofilament (slippery) and at all costs stay away from the power pro high tech stuff. It casts really well, I use it, but it frays like crazy.
"pfjw@aol.com" <pfjw@aol.com>: Aug 23 06:50AM -0700

> Dental floss.
 
> Bill
 
You are CRUEL!!
 
Dental Floss is the last material that should be used for anything inside any electronics for any purpose other than cleaning. Sure, lots do use it. And if they use it in something that actually does get used, they will regret it.
 
This is similar to, but much worse than, using wax shoe-polish on stag.
 
Cruel, as OldSchool might actually take your advice!
 
Peter Wieck
Melrose Park, PA
Cursitor Doom <curd@notformail.com>: Aug 22 11:03PM

On Mon, 21 Aug 2017 16:12:18 -0700, tabbypurr wrote:
 
> Abuse does not remedy the absence of fact or logic.
 
Actually for Antifa, its acolytes and apologists, it most assuredly
does!
 
 
 
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oldschool@tubes.com: Aug 22 01:38PM -0400

I have an inexpensive 12vdc to 120 vac power inverter (300 watt). I use
it in my car for powering my laptop computer and use it when I am
camping for running a small fan, and more.....
 
It used to work fine, but for some weird reason it seems slow to startup
these days. It has a green light (ON) and a red light which indicates
it's not ready to use. That red light used to just come on for a second
when I turned it on, now it takes up to a minute.
 
Even more weird, I plugged it into a portable 12v battery that needed to
be charged, and the inverter would not start (that's normal). But when I
plugged it into my car (with fully charged battery), it still would not
power up. I had to turn it on and off several times. Finally it kicked
in. (As if it memorized that weak battery).
 
Obviously the semiconductors in the inverter still work, or the inverter
would not work at all. I know there is not much else in these things,
but I believe there is a capacitor. (I have not opened it yet). I'm
wondering if the capacitor is getting weak?
 
I'm not gonna stick a lot of time or money into this thing, but if it
just needs a cap, I'll fix it..... Othersise I'll just buy a new
inverter.
 
Any inverter experts out there?
Ralph Mowery <rmowery28146@earthlink.net>: Aug 22 06:21PM -0400

In article <a9qopcdgi6m4gmfpmor19coam6e7c03p54@4ax.com>,
oldschool@tubes.com says...
> just needs a cap, I'll fix it..... Othersise I'll just buy a new
> inverter.
 
> Any inverter experts out there?
 
Not an expert,but try new capacitors, especially in the control and
start up circuits.
 
I have a very expensive radio service monitor (was when new about 20
years ago) I bought used around 2 years ago. It got slow to start up
and I took the heat gun from the SMD rework station that has about a 1/4
inch nozzle on it and played around on the capacitors and found one or
two that as soon as I heated them , it would start up.
 
Some old computer boards would do the same thing.
oldschool@tubes.com: Aug 22 01:10PM -0400

On Sat, 29 Jul 2017 19:26:36 -0700 (PDT), Tim R <timothy42b@aol.com>
wrote:
 
>Can you run these vertically? or do they need the airflow from the bottom to stay cool enough?
 
Case position should not matter at all. Ventilation does matter though.
If need be, get a computer fan from an old computer and mount it inside
or outside the case. Then find a suitable 12volt power supply (wall wart
or other) to power it.
tabbypurr@gmail.com: Aug 22 01:28PM -0700

> If need be, get a computer fan from an old computer and mount it inside
> or outside the case. Then find a suitable 12volt power supply (wall wart
> or other) to power it.
 
+1, but run it on 5v or 6v.
 
 
NT
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