Digest for sci.electronics.repair@googlegroups.com - 25 updates in 5 topics

Look165 <look165@numericable.fr>: Feb 20 10:55AM +0100

Generallly, it comes from a bas contact between the cursor aand the
resistive track (dust or oxyde).
It can also come from a miscontact between this track and the connecting
pad or a "dry solder".
First step : re-solder everything.
Second step : use some KF or equivalent in large quantity inside
(through the opening of the leads).
 
Peter Jason a écrit le 20/02/2019 à 02:06 :
Peter Jason <pj@jostle.com>: Feb 20 12:06PM +1100

I have one of these......
 
https://i.ytimg.com/vi/1VHkWsb9MY0/maxresdefault.jpg
 
 
The volume control wheel (at the side) has lost
all fine-tuning capability, and makes appalling
noises when operated as it jumps at random from
high to low volume.
 
Is there a fix; is it a loose connection, dust or
grit in the works? Should I just flush it out.
 
Otherwise the radio works well.
Peter Jason <pj@jostle.com>: Feb 28 11:36AM +1100

On Wed, 20 Feb 2019 12:06:09 +1100, Peter Jason
 
>Is there a fix; is it a loose connection, dust or
>grit in the works? Should I just flush it out.
 
>Otherwise the radio works well.
 
I fixed it by flushing the area around the volume
wheel with isoPropanol. The wheel is slightly
harder to turn though this might improve as
remaining traces of solvent evaporate.
Fox's Mercantile <jdangus@att.net>: Feb 27 06:41PM -0600

On 2/27/19 6:36 PM, Peter Jason wrote:
> wheel with isoPropanol. The wheel is slightly
> harder to turn though this might improve as
> remaining traces of solvent evaporate.
 
It won't. You've flushed all the lubrication out of
it.
 
 
--
"I am a river to my people."
Jeff-1.0
WA6FWi
http:foxsmercantile.com
Phil Allison <pallison49@gmail.com>: Feb 27 05:00PM -0800

Peter Jerkoff Jason wrote:
 
> wheel with isoPropanol. The wheel is slightly
> harder to turn though this might improve as
> remaining traces of solvent evaporate.
 
** Nobody here suggested you do that.
 
What a fucking idiot you are.
 
 
 
.... Phil
Peter Jason <pj@jostle.com>: Feb 28 12:09PM +1100

On Wed, 27 Feb 2019 18:41:53 -0600, Fox's
>> remaining traces of solvent evaporate.
 
>It won't. You've flushed all the lubrication out of
>it.
 
....er, what can I use as a replacement lubricant?
Peter Jason <pj@jostle.com>: Feb 28 12:10PM +1100

On Wed, 27 Feb 2019 17:00:11 -0800 (PST), Phil
 
>** Nobody here suggested you do that.
 
> What a fucking idiot you are.
 
> .... Phil
 
How rude! Your endless brawling with other posters
has got me flummoxed and confused.
Fox's Mercantile <jdangus@att.net>: Feb 27 07:13PM -0600

On 2/27/19 7:09 PM, Peter Jason wrote:
 
>> It won't. You've flushed all the lubrication out of
>> it.
 
> ....er, what can I use as a replacement lubricant?
 
What we told you to use to begin with.
<https://caig.com/fader-f-series/>
 
 
--
"I am a river to my people."
Jeff-1.0
WA6FWi
http:foxsmercantile.com
Fox's Mercantile <jdangus@att.net>: Feb 27 07:15PM -0600

On 2/27/19 7:10 PM, Peter Jason wrote:
> How rude! Your endless brawling with other posters
> has got me flummoxed and confused.
 
You have two choices with Phil, agree with him, or
ignore him.
 
--
"I am a river to my people."
Jeff-1.0
WA6FWi
http:foxsmercantile.com
Peter Jason <pj@jostle.com>: Feb 28 12:15PM +1100

On Tue, 26 Feb 2019 05:37:45 -0800 (PST), Terry
 
>That is all true -- except that the common detergent packs or liquids are extremely caustic. Much more so than the liquids used for hand-washing dishes. Something to consider.
 
>Terry
 
>> Point being that a well-designed unit will get dishes cleaner, using less water, less energy and fewer chemicals than hand-washing unless one is incredibly efficient about it. The dynamics change if one lives alone, or has on-site sanitation, tankless water heater and any of several other conditions that mitigate towards hand-washing.
 
Yes, I live alone in unalloyed bliss.
Additionally, I can get by on but one shower/week
(except during heat waves and the odd
bone-chilling winter's day.)
% <persent@gmail.com>: Feb 19 07:15PM -0700

On 2019-02-19 7:02 p.m., Rod Speed wrote:
>> turns the power off and on, when it comes on, the radio doesn't start
>> until someone pushes a button.
 
> They arent all like that. Just replace the radio with a better analog one.
 
 
and get on SiriusXM
danny burstein <dannyb@panix.com>: Feb 20 04:07AM

>> what makes radios drift from the proper tuning?
 
>How old and crappy are your radios? Have you made it up to a
>superheterodyne or are you still in the regenerative era?
 
Me, I'm still waiting to upgrade to using a stainless
steel razor blade for mine...
 
--
_____________________________________________________
Knowledge may be power, but communications is the key
dannyb@panix.com
[to foil spammers, my address has been double rot-13 encoded]
Sjouke Burry <burrynulnulfour@ppllaanneett.nnll>: Feb 20 02:54AM +0100

On 20-2-2019 0:58, micky wrote:
 
> I can't use radios with electronic tuning because with a timer that
> turns the power off and on, when it comes on, the radio doesn't start
> until someone pushes a button.
 
Any or all of the above.
micky <NONONOmisc07@bigfoot.com>: Feb 19 11:27PM -0500

In alt.home.repair, on Tue, 19 Feb 2019 20:54:12 -0500,
>> a little bit? Or do the parts get warm and some value changes?
 
>> Is this more common in AM than FM? or vice versa? FM has AFC but iirc
>> AM doesn't have that.
 
This is not as bad as some seem to have gleaned. This method will work,
I just wanted to shorten the time it would take me to find the right
radio, the right AM or FM band, and a a good station

>> turns the power off and on, when it comes on, the radio doesn't start
>> until someone pushes a button.
 
>Do you have a TV with cable access ?
 
No, I don't.
 
>If so, does the cable service have
>music only channels ? Our Xfinity/Comcast does.
 
It doesn't have to be music. Burglars don't know my tastes. It just
has to be a radio or tv station.
 
BTW, I've been on 3 trips in the last 2 years totaling 160 days and no
one has bothered my house at all. I just want to keep it that way.
 
>Have your timer turn the TV on/off. Leave cable box set to music channel.
 
If the timer provides power to the TV, someone has to press the TV's
on/off button.
 
Thanks.
rbowman <bowman@montana.com>: Feb 19 08:53PM -0700

On 02/19/2019 04:58 PM, micky wrote:
> what makes radios drift from the proper tuning?
 
How old and crappy are your radios? Have you made it up to a
superheterodyne or are you still in the regenerative era?
devnull <devnull@127.0.0.1>: Feb 21 05:48AM -0500

On 2/19/19 6:58 PM, micky wrote:
> and also a radio, but some radios get so far out of tune, even when I
> don't touch them, that almost nothing comes out, and I'd like the radio
> to continue to play the station clearly.
 
 
 
Are you afraid some border-hoppin' thief is going to steal your stuff?
 
The most effective way to keep the criminals out is to build a wall around your house. Open borders don't work.
George <george@spacely-sprokets.com>: Feb 21 06:32AM -0500

On 2/21/2019 5:48 AM, devnull wrote:
 
> Are you afraid some border-hoppin' thief is going to steal your stuff?
 
> The most effective way to keep the criminals out is to build a wall around your house.  Open borders don't work.
 
Nancy Pelosi has an immoral wall around her compound.  She also has people with guns protecting her home as well.
micky <NONONOmisc07@bigfoot.com>: Feb 19 06:58PM -0500

what makes radios drift from the proper tuning?
 
I have radios that I tune and after they play a while the tuning needs
to be adjusted.
 
This is common, I assume.
 
What is happening? Does the vibration make the variable condenser shift
a little bit? Or do the parts get warm and some value changes?
 
Is this more common in AM than FM? or vice versa? FM has AFC but iirc
AM doesn't have that.
 
 
 
 
I am going away for a while and I want to use timers to turn on lights
and also a radio, but some radios get so far out of tune, even when I
don't touch them, that almost nothing comes out, and I'd like the radio
to continue to play the station clearly.
 
 
I can't use radios with electronic tuning because with a timer that
turns the power off and on, when it comes on, the radio doesn't start
until someone pushes a button.
micky <NONONOmisc07@bigfoot.com>: Feb 19 08:46PM -0500

In alt.home.repair, on Tue, 19 Feb 2019 16:54:36 -0800 (PST), trader_4
 
>Usually the tuning issue is mostly with weaker stations. If the issue is
 
I didn't pay much attention until just now, but I think the common one
was 88.1, which is pretty strong. I'd leave one radio on and even in the
length of time it takes to take a bath, 30 minutes, the sound would get
gnarled.
 
On my 250 dollar radio, 88.1 in Baltimore got lower in volume about a
year ago, and 88.5 which is all the way in DC is now louder and probably
more clear. (But that one has electronic tuning, have to push a
button to get sound.)
 
BUT, none of the radios I actually use except the car radio can get
88.5, because it's all the way in DC. Yet on the good radio it comes in
better.
 
I guess I figure that if it drifts on a somewhat weak station, it will
drift on any station. Is that where AFC will make a difference? On FM
only but not AM? (and with enough time it will drift so far it won't
sound like a radio station.)
 
>over the years that stayed tuned to all kinds of stations AM and FM without
>a problem. Micky is in MD too, right? Should be plenty of local, strong
>stations.
 
Yes, just for making noise it doesn't have to be a station I would
actually listen to. It could even play hiphop. it's a pain for
testing however, having to listen to some of that.
George <george@spacely-sprokets.com>: Feb 21 01:12PM -0500

On 2/21/2019 11:38 AM, Bob F wrote:
 
>> Nancy Pelosi has an immoral wall around her compound.  She also has people with guns protecting her home as well.
 
> With people like you in this country, I can certainly understand her worries.
 
Ted Kennedy's Oldsmobile has killed more people than my handguns.
tubeguy@myshop.com: Feb 19 11:13PM -0600

In the 1960s the pocket radios hit the market and were sold everywhere.
I have not opened one of them in years, but I recall the transistors
used in them did not look like more modern types. They had a small metal
can. Just a straight sided metal can, shaped like modern capacitors, but
bare metal. Some had colored dots on them to identify the leads too.
 
First, I am thinking that they were geranium types. Is that correct?
 
Second, I have a very old GE transistor manual (edition 2) (PDF). No
where in there does it mention the case style of them. What is the case
style?
 
Seems those type of transistors came and went quickly. I assume they
were the first generation of transistors.
 
Shortly after, I recall seeing a lot of metal cases that were shaped
more like a hat, with a brim. Those too vanished. And I recall seeing
some of the hat shaped types with a point sticking out of the top. I
always wondered what that point was for???
bitrex <user@example.net>: Feb 20 05:08PM -0500

> can. Just a straight sided metal can, shaped like modern capacitors, but
> bare metal. Some had colored dots on them to identify the leads too.
 
> First, I am thinking that they were geranium types. Is that correct?
 
Germanium, son. Geraniums are the perennials your wife grows in the garden.
 
Adam <adamg@pobox.comNOSPAM>: Feb 22 05:23AM

> LED display on a small board that mounts to the front panel board.
 
> While the machine is a Philips/Magnavox based player, I do not know
> what an equivalent model that might share the same display is.
 
I believe the Philips CD160, CD460, CD560, Magnavox CDB460, CDB560 and
Sylvania CD1650 have this display. There are a few on eBay but they're
not cheap!
 
There is a design for a DIY retrofit which may or may not be suitable:
https://www.diyaudio.com/forums/digital-source/259790-nsm4202a-led-display-module-replacement-philips-sony-cdm-transports.html
 
-- Adam
Tim Schwartz <tim@bristolnj.com>: Feb 21 03:19PM -0500

Hello all,
 
A customer has an AR CD-04 with a bad display. This is a 4 digit green
LED display on a small board that mounts to the front panel board.
 
While the machine is a Philips/Magnavox based player, I do not know
what an equivalent model that might share the same display is.
 
Since I'd guess that many of these have been scrapped because of a
defective CDM-2 mechanism, I'm hoping someone has saved a chassis that
might have a good display or display board that they would be willing to
sell me.
 
Gentlemen, please check you junk rooms!
 
Regards,
Tim Schawrtz
Bristol Electronics
Ho-Ho-Kus, New Jersey
Look165 <look165@numericable.fr>: Feb 21 10:02PM +0100

Maybe the flat ribbon cable ; just shrten it at the end.
 
Tim Schwartz a écrit le 21/02/2019 à 21:19 :
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