Digest for sci.electronics.repair@googlegroups.com - 7 updates in 2 topics

"pfjw@aol.com" <peterwieck33@gmail.com>: Aug 31 06:40AM -0700

Some here may know that I operate the Part-15 compliant AM & FM transmitters for the Kutztown Radio Meet. Given that vintage TVs are becoming more prevalent at the show, I would also like to operate a small VHF television transmitter featuring vintage movies and such. I see lots of stuff out there for UHF, nothing that specifically lists VHF, other than DIY stuff, for which I have neither the time nor inclination given I do not collect any sort of TV stuff.
 
Kit or ready-made - any suggestions? Remember, I am in the USA.
 
Thanks in advance!
 
Peter Wieck
Melrose Park, PA
Chuck <chuck23@dejanews.net>: Aug 31 11:01AM -0500

On Mon, 31 Aug 2020 06:40:32 -0700 (PDT), "pfjw@aol.com"
 
>Thanks in advance!
 
>Peter Wieck
>Melrose Park, PA
Would this do?
https://www.pcs-electronics.com/tvmax6010v-lohi-transmitter-p-1224.html
Wond <lost@the.ether.net>: Aug 31 04:10PM


> Kit or ready-made - any suggestions? Remember, I am in the USA.
 
> Thanks in advance!
 
> Peter Wieck Melrose Park, PA
 
A stand-alone A-V modulator unit from the VCR era gets you to channel 3
or 4; a good antenna-distribution amplifier makes that transmittable; a
vertically mounted folded dipole antenna allows you to match with a balun.
All often available at thrift stores etc. I have used this to re-
transmit to a small area in a remote location, it worked fine.
"pfjw@aol.com" <peterwieck33@gmail.com>: Aug 31 09:18AM -0700

> Would this do?
> https://www.pcs-electronics.com/tvmax6010v-lohi-transmitter-p-1224.html
 
Thank you for that link! It is a good start.
 
But, by the time I got out of there, I was well over $400 - not what I would care to spend for something that would get used twice per year for a hobby I do not have. I am trying to be a full-service OTA provider for the good of the club, and to help the other vendors as I do with the AM & FM-stereo transmitters. UHF TV would close the loop covering all the relevant receivers and tuners.
 
Thanks again!
 
Peter Wieck
Melrose Park, PA
"pfjw@aol.com" <peterwieck33@gmail.com>: Aug 31 09:24AM -0700

> vertically mounted folded dipole antenna allows you to match with a balun.
> All often available at thrift stores etc. I have used this to re-
> transmit to a small area in a remote location, it worked fine.
 
I have everything on that list in-hand but for an A-V modulator and distribution amplifier. I expect that those things are not hard to find with timing being the only issue at this point.
 
Thank you!
 
Peter Wieck
Melrose Park, PA
amdx <amdx@knology.net>: Aug 30 04:59PM -0500

On 8/29/2020 1:29 PM, jo shua wrote:
 
> Much appreciated post.
 
> Does anyone know how I can privately get in touch with Phil?
 
> Regards
 
Have you tried, Phil Allison <pallison49@gmail.com> ?
 
 
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Phil Allison <pallison49@gmail.com>: Aug 30 08:25PM -0700

amdx wrote:
 
===========
 
> > Does anyone know how I can privately get in touch with Phil?
 
> > Regards
 
> Have you tried, Phil Allison <pallison49@gmail.com> ?
 
** Phil is right here if the OP wants to ask something.
 
 
 
..... Phil
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Digest for sci.electronics.repair@googlegroups.com - 7 updates in 5 topics

"Wilson F." <blitzkrieg.wilson@gmail.com>: Aug 30 09:28AM -0700

Hello
I would like to help owners of DMR-ES20 to fix the known "zero" error.
This occur due a failure on PSU section that can't provide correct voltages to other sections/modules.
Is recommended replace 7 electrolytic capacitors (a cap kit) with 105°C range.
 
C1143 100uF 350V
C1150 56uF 35V
C1280 680uF 10V
C1400 470uf 16V
C1270 1000uf 16V
C1260 1500uF 10V
C1281 47uF 25V
vjp2.at@at.BioStrategist.dot.dot.com: Aug 30 01:14PM

Right half screen kinds acts like a roll down, Flickers
 
What do you call this?
I'm from the days when all you had was vertical and horizontal hold
 
Is it temporary (lotsa storms recently)?
 
I say this because I've had TVs that lost all sound and then turned it on
years later and was fine.
 
I've owned tub TVs for about a decade each.
I had two old freq LCD TVs (BW, 1") that lasted twenty.
Prolly would still work if freq did
 
 
 
--
Vasos Panagiotopoulos, Columbia'81+, Reagan, Mozart, Pindus
blog: panix.com/~vjp2/ruminatn.htm - = - web: panix.com/~vjp2/vasos.htm
facebook.com/vasjpan2 - linkedin.com/in/vasjpan02 - biostrategist.com
---{Nothing herein constitutes advice. Everything fully disclaimed.}---
etpm@whidbey.com: Aug 29 10:14AM -0700

I spent lots of time in the Santa Cruz Mountains as a teen and up in
into my early 20s. I can't even count how many times I drove or was
driven on Hwy. 9. I loved Ben Lomond, Boulder Creek, and Felton. I
remember digging for shark teeth. I'm sure happy you are doing OK and
didn't lose your house. 1500 feet is awful close. If there was a fire
burning 1500 feet from my house it would be burning my woods or my
neighbor's woods. Scary.
Eric
 
On Sat, 29 Aug 2020 08:38:40 -0700, Jeff Liebermann <jeffl@cruzio.com>
wrote:
 
 
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John Robertson <spam@flippers.com>: Aug 29 10:33AM -0700

On 2020/08/29 8:38 a.m., Jeff Liebermann wrote:
> Big Bear and Lake Arrowhead were my hangouts. I liked it so much that
> when I finally decided to buy a house, it was in an area that looked
> much likg Big Bear.
 
Hi Jeff,
 
When/if you get a new roof you may want to consider a metal one - if you
don't already have that...and clear all brush around your home.
 
A friend of mine lives in the mountains of BC and is a fire warden for
his area along with other residents. They all have metal roofs on their
homes, but with so much timber it may be pointless extra protection..
 
Glad you are OK.
 
John :-#)#
 
--
(Please post followups or tech inquiries to the USENET newsgroup)
John's Jukes Ltd.
MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3
(604)872-5757 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."
Jeff Liebermann <jeffl@cruzio.com>: Aug 29 12:06PM -0700

On Sat, 29 Aug 2020 10:33:43 -0700, John Robertson <spam@flippers.com>
wrote:
 
>When/if you get a new roof you may want to consider a metal one - if you
>don't already have that...and clear all brush around your home.
 
Part of my house has a flat roof. Corrugated metal roofs don't work
very well with a low slope roof line. Also, I lived in a trailer with
a metal roof for a time. I really didn't enjoy trying to sleep in the
rain, which sounded like loud banging inside a drum. However, a metal
roof is the standard recommendation for fire proofing a house in the
forest. There are also financial considerations which I don't want to
discuss.
 
As for brush, there is plenty around me. The house is on a steep 45
degree slope. The idea behind defensible space is so the fire
fighters can being in equipment put out a fire. It gives them room to
work. That's not going to happen on a steep slope. I'll probably do
a better job of brush removal, but that's not going to be even close
to the recommended 100 ft defensible space.
<https://www.fire.ca.gov/programs/communications/defensible-space-prc-4291/>
incidentally, my lot is about 50 x 85ft. With such small lots, 100ft
of defensible space is ludicrous because it would require a 2 acre lot
to fit a typical 1500 sq-ft house.
 
>A friend of mine lives in the mountains of BC and is a fire warden for
>his area along with other residents. They all have metal roofs on their
>homes, but with so much timber it may be pointless extra protection..
 
I have redwood decks located around the outside of the house in
various locations. Should I switch to synthetic decking or more
likely, a concrete patio? Maybe corrugated metal decking or diamond
plate? No thanks.
 
>Glad you are OK.
 
I'm ok for now, but there are big problems on the horizon. For
example, I had planned to finance my retirement with a reverse
mortgage, which uses the value of the house for collateral on a loan.
The problem is no loan company or bank is going to loan me money
unless I pay for 100% replacement cost insurance on the house. If I
fail to pay, or the insurance company cancels, they foreclose on the
loan. So much for my retirement. I'll probably end up working until
I drop dead just to support my various insurance policies.
 
When I bought the house in 1973(?), I knew about the risk of fire.
Actually, earthquake was considered to be a greater risk at the time.
We've had a few local brush fires, but the redwoods lived up to their
reputation of being almost fireproof. However, the current fire had
100F temperatures and far too much forest floor debris, which caused
the redwood to burn quite easily. There are were also 300+ lightning
fires scattered all over the state. The odds of that happening
simultaneously again are very small and might be sufficient to justify
living with the risk.
 
--
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
jo shua <joshuax500@gmail.com>: Aug 29 11:29AM -0700

On Wednesday, 4 March 2015 at 02:30:16 UTC, palli...(edited) wrote:
 
> My customer uses the PL-9 to drive six, horn loaded bass bins in his PA system, each with a 600W, 15inch, 8ohm speakers.
 
> The PL-9 and PL-6 have a reputation for poor reliability, so I hope I never sees this beast again and if it ever blows up it can stay that way, as far as I am concerned.
 
> ... Phil
 
Hi,
 
Much appreciated post.
 
Does anyone know how I can privately get in touch with Phil?
 
Regards
Jeff Liebermann <jeffl@cruzio.com>: Aug 29 11:08AM -0700

>https://www.makeuseof.com/tag/phones-slow-usage-years/
 
>I was wondering if anyone knows of an app that shows the write count for
>memory in an Android phone.
 
 
Maybe:
"Samsung's HIDDEN Diagnostic Mode [Test Mode]"
<https://www.youtube.com/watch?v=hIoZ4TSAQoQ>
If you look at the tests offered, the button in the lower left is for
an "MLC" test, which might be a memory test. I don't have access to a
working Samsung phone to test this.
 
Hint: Samsung phone model number? It might be amusing to verify the
type of SSD used in the phone. Also, the larger SSD chips use a
rather large SLC area as a cache, which drastically reduces access
wear and tear in the MLC/TLC/QLC memory.
 
There are also apps that claim to do a "storage stress test":
"Phone Check and Test"
<https://play.google.com/store/apps/details?id=com.inpocketsoftware.andTest&hl=en_US>
I'm not sure that beating up on the Flash RAM is a good idea if it's
really that fragile.
--
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
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Digest for sci.electronics.repair@googlegroups.com - 2 updates in 1 topic

Jeff Liebermann <jeffl@cruzio.com>: Aug 29 08:38AM -0700

>heartsick. I hope you are OK.
>Sincererly,
>Eric
 
Thanks for asking. I'm ok and my house in Ben Lomond is ok. The fire
burned to within 1500 ft of my house. My house is the blue marker:
<http://www.learnbydestroying.com/jeffl/CZU-Fire/Jackson%20Ave%202020-08-29.pdf>
I haven't seen it yet. I expect everything to be covered with a thin
layer of ash. The area is being slowly "repopulated". I expect to be
back home in a few days.
 
Most of Big Basin Redwoods State Park and Little Basin were destroyed.
None the historic buildings are left. Henry Cowell Park is untouched.
The nearby Fall Creek Park is mostly burned over. See my collections
of
info links. Some spotty areas survived, but none of the fire maps
offer sufficient detail to show them. If you're interested in a
particular address or area, try:
<https://sccgis.maps.arcgis.com/apps/webappviewer/index.html?id=5461c7f372e24ab68ca386e73d58e35a>
for damage inspection results:
 
Presently, I've been evacuated. I setup housekeeping in my formerly
palatial office in Santa Cruz.
<http://www.learnbydestroying.com/jeffl/CZU-Fire/Office-2020-08-29.jpg>
I had given the landlord notice and was scheduled to be out of the
office on Monday, so the office was almost empty when I arrived. I've
been spending most of my time keeping track of the fire, posting
explanations of how things work to neighbors on Nexdoor.com, acting as
self appointed public info officer, and making some rather bad
predictions. Some accumulated info links at:
<http://www.learnbydestroying.com/jeffl/CZU-Fire/>
Water might be a problem. Too soon to tell:
<https://www.youtube.com/watch?v=xijMv6hk1Zc>
 
My office is next to the San Lorenzo River. At one point, it was
decided that the fire might enter the city via the brush growing in
the river. Unlikely, but possible if the winds and very hot weather
continued. It was therefore possible that the area around my office
would be evacuated. That meant that I had my car loaded and packed
for a quick escape to parts unknown with minimal notice. At one
point, the fog trapped the smoke from the fire in the adjacent river
canyon. It was awful, so I went to Costco and bought a Winix C535 air
purifier. That helped.
 
I managed to squeeze in a few computer repairs. All were unsuccessful
because all my tools, software, and spare parts were in my house in
Ben Lomond. It didn't help that I was also a nearly sleepless and a
rather nervous wreck, while the computer owners were no better.
 
Drivel: It's amazing that a large number of residents didn't think of
calling their home telephone answering machine to see if their house
still had phone and power service, which is a good indication that the
house is likely to be intact. I had to repeat this suggestion many
times.
 
Also, I was into "car camping" when I was a teenager in Smog Angeles.
Big Bear and Lake Arrowhead were my hangouts. I liked it so much that
when I finally decided to buy a house, it was in an area that looked
much likg Big Bear.
 
 
--
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
Fox's Mercantile <jdangus@att.net>: Aug 29 11:24AM -0500

On 8/29/20 10:38 AM, Jeff Liebermann wrote:
> Thanks for asking. I'm ok and my house in Ben Lomond is ok.
 
Good to hear.
 
 
--
"I am a river to my people."
Jeff-1.0
WA6FWi
http:foxsmercantile.com
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Digest for sci.electronics.repair@googlegroups.com - 1 update in 1 topic

"pfjw@aol.com" <peterwieck33@gmail.com>: Aug 28 06:24AM -0700

> Did you mess up the timing of the motor by chance? The angle of the
> brushes makes a huge difference.
 
> maybe? How's the motor run with no speed controller?
 
 
The brushes are sleeved and fit in only one way. About the only other 'unusual' possibility is that Eric has a Euro version - which has flat paper caps in the motor. They should be REMOVED and NOT REPLACED!
 
Peter WIeck
Melrose Park, PA
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Digest for sci.electronics.repair@googlegroups.com - 6 updates in 4 topics

Cydrome Leader <presence@MUNGEpanix.com>: Aug 27 06:58AM

> the proper grease.
> So after all that the machine still runs too slowly. At least in my
> opinion. The motor just doesn't seem to have much oomph and I'm
 
Did you mess up the timing of the motor by chance? The angle of the
brushes makes a huge difference.
 
> current and/or voltage. Since the control is PWM output would an
> analog meter like my Simpson 260 be a good tool to measure the current
> and voltage?
 
maybe? How's the motor run with no speed controller?
"pfjw@aol.com" <peterwieck33@gmail.com>: Aug 26 10:02AM -0700

Older SD cards suffered from deterioration, temperature sensitivity, moisture sensitivity, power spikes, power failure, and "simple" internal failure. Solutions include:
 
SD Monitoring software - It will check an SD, warn if there may be damage and can (sometimes) fix that damage. There are companies out there that will do the same thing if you send them the damaged card.
 
https://product.tdk.com/info/en/products/flash-storage/flash-storage/tdksmart.html One of several.
 
Shift to 'industrial' SD cards.
 
https://www.amazon.com/SanDisk-Endurance-Monitoring-Adapter-SDSDQQ-032G-G46A/dp/B00V5Q1K3O One of many options.
 
Peter Wieck
Melrose Park, PA
Mike Coon <gravity@mjcoon.plus.com>: Aug 26 09:24PM +0100

In article <3d3dkf11u4uv5vi3014ec0qku7pt9t7u18@4ax.com>,
etpm@whidbey.com says...
> on my computer?
> Thanks,
> Eric
 
You nay be able, if wished, to read full-size cards in a tablet by using
an OTG card reader quite cheaply.
 
Mike.
whit3rd <whit3rd@gmail.com>: Aug 26 06:31PM -0700

> take is a 2GB.
>...The cards have sat around for about a year and now most of the
> pictures are corrupted.
 
Age causes the charge to leak, and any 2G card is probably a decade old.
Good news: you can get a format utility from the SDcard consortium
 
<https://www.sdcard.org/downloads/formatter/>
 
and if you choose the 'overwrite' option, it completely initializes all the bits
instead of just directory twiddling.
 
The complete rewrite takes a while, of course, but it does get rid of weak bits,
and presumably that's what aging has done.
"Ron D." <ron.dozier@gmail.com>: Aug 26 12:36PM -0700

Well, you hit a sore point, The little CECB box, you can type the physical channel and the virtual channels programmed or not programmed will show up.
 
On a 55" System 6 "Smart", very dumb TV, nothing happens.
 
it can only delete-all and re-scan. That's are the brain cells it has.
 
Can it know about an antenna rotator? No.
 
You can also have for the same physical channel: Say 36
6-2
51.1
51.5
51.101
 
There was some major shifts, at least two in the Philadelphia area. I don't know if scan and add would have worked for one of them.
KenW <ken1943@invalid.net>: Aug 26 11:58AM -0600


>---
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>https://www.avast.com/antivirus
 
I think who made the SD cards makes a big difference just like flash
drives.
 
 
KenW
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Digest for sci.electronics.repair@googlegroups.com - 8 updates in 4 topics

etpm@whidbey.com: Aug 26 09:36AM -0700

I have an old Canon camera, model SD300, that I modified for taking
pictures in near IR and near UV. The largest capacity SD card it will
take is a 2GB.
I bought 2 cards and took a lot of pictures and they were all fine
when I looked at them later when I put the SD cards in my computer and
tablet. The cards have sat around for about a year and now most of the
pictures are corrupted. Fortunately I had saved the pictures I liked.
Is there something I could have done that caused this problem? I am
using micro SD cards in an adapter so they will fit the camera and my
tablets. Should I just use full size cards and only view the pictures
on my computer?
Thanks,
Eric

 
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micky <NONONOmisc07@bigfoot.com>: Aug 26 02:32AM -0400

In alt.home.repair, on Tue, 25 Aug 2020 11:20:58 -0500, Mark Lloyd
>> more than 2 years. More than 5 years?
 
>We had to rescan earlier this year, just because of a new subchannel
>(56-4, AntennaTV) that the local NBC station added.
 
So does that mean if you hadn't rescanned, you'd still have gotten all
the channels but that one.
 
Could you have just punched in 56,4 and the tv would find it, and then
ou could add it to the internal list, but they said to rescan because
that's a simple instruction and applies to everyone, whereas the
instructions for adding a station vary by tv.
 
Mark Lloyd <not@mail.invalid>: Aug 26 11:34AM -0500

On 8/26/20 1:32 AM, micky wrote:
 
[snip]
 
>> (56-4, AntennaTV) that the local NBC station added.
 
> So does that mean if you hadn't rescanned, you'd still have gotten all
> the channels but that one.
 
Yes, it was just that one that needed to be added.
 
> ou could add it to the internal list, but they said to rescan because
> that's a simple instruction and applies to everyone, whereas the
> instructions for adding a station vary by tv.
 
I can't try 56.4 now, since its already scanned (checking it would
require disconnecting the antenna, rescanning, then reconnecting the
antenna. Too much to do for something that probably won't worh and won't
help if it does). Trying 22.4 (the physical channel is 22) is ignored
(on all t TVs I tried).
 
 
--
Mark Lloyd
http://notstupid.us/
 
"Religion is all bunk." -- Thomas Edison
legg <legg@nospam.magma.ca>: Aug 25 06:07PM -0400

On Mon, 24 Aug 2020 10:33:38 -0700 (PDT), "ohg...@gmail.com"
 
>T901 sub transformer is open (lightning). I subbed in a 12V control transformer and it works as it should, but it's too big to mount in the confined area. The original transformer is a through the hole PC mount.
>Yamaha part number is XA754001 obsolete as of 2008. Anyone have one to sell, or do they know of a close enough sub to fit the board for this model. I don't mind relocating foils or redrilling if I have to but customer prefers to keep it authentic if at all possible. Thanks.
 
What's the size and pin spacing/function?
 
RL
"jfeng@my-deja.com" <jfeng@my-deja.com>: Aug 25 03:56PM -0700

How abut a wall wart?
Tim Schwartz <tim@bristolnj.com>: Aug 25 08:33PM -0400

> T901 sub transformer is open (lightning). I subbed in a 12V control transformer and it works as it should, but it's too big to mount in the confined area. The original transformer is a through the hole PC mount.
> Yamaha part number is XA754001 obsolete as of 2008. Anyone have one to sell, or do they know of a close enough sub to fit the board for this model. I don't mind relocating foils or redrilling if I have to but customer prefers to keep it authentic if at all possible. Thanks.
 
A lot of surround receivers have a 12V standby supply derived from a
small transformer on the board. If you look at the size of the one you
need, you might find something very close in an old surround receiver.
NAD, Arcam certainly used them, and I'm sure others as well.
 
You might also want to look at all of the pins on the old one, as you
might have an open thermal fuse. On some transformers it might be
possible to replace it. Sometimes it will take unwrapping the
transformer tape to find it. I would NOT suggest bypassing a thermal
fuse as a long term solution.
 
Regards,
Tim
"ohg...@gmail.com" <ohger1s@gmail.com>: Aug 26 08:07AM -0700

On Tuesday, August 25, 2020 at 8:33:59 PM UTC-4, Tim Schwartz wrote:
> fuse as a long term solution.
 
> Regards,
> Tim
 
 
Thanks for the advice fellas. For posterity, here's a solution by substitution, although the sub may be just as hard to find in the near future. By wasting far too much time, I discovered that the Sony 1-448-852-11 transformer is the same as the Yamaha XA754001. Same size, footprint, and even the same plastic foot snaps. Perfect fit with no mods required. All is well.
 
John
legg <legg@nospam.magma.ca>: Aug 25 04:30PM -0400

On Mon, 03 Aug 2020 11:03:34 -0400, legg <legg@nospam.magma.ca> wrote:
 
<snip>
>the OS on a USB-connected HDD.
 
>I'm discouraged by this experience with DVD media and
>hardware, for data.
 
Final replacement for the drive on IDE interface solved
the last of the issues, on the older machine. This drive
had been replaced with a similar 'new' HT/LG model once
already, without results. The new Sony part is datecoded
2008, 'new in box', though it's obviously been rifled and
reboxed some time ago.
 
The Sony DRU-190A had no issues, though it had me worried
when explorer didn't seem to see a blank DVD. Installed
software did see them and interrogated/tested.
Labelled data DVDs were properly listed in explorer.
Perhaps the older OS didn't normally list blank media - my
memory fails me.
 
I'm staring ar 6 duff optical drives on the shelf - all
HT/LG of the same vintage. 2008-2010. Half SATA, half IDE.
 
RL
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Digest for sci.electronics.repair@googlegroups.com - 1 update in 1 topic

"ohg...@gmail.com" <ohger1s@gmail.com>: Aug 24 10:33AM -0700

T901 sub transformer is open (lightning). I subbed in a 12V control transformer and it works as it should, but it's too big to mount in the confined area. The original transformer is a through the hole PC mount.
Yamaha part number is XA754001 obsolete as of 2008. Anyone have one to sell, or do they know of a close enough sub to fit the board for this model. I don't mind relocating foils or redrilling if I have to but customer prefers to keep it authentic if at all possible. Thanks.
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Digest for sci.electronics.repair@googlegroups.com - 7 updates in 3 topics

Andy Burns <usenet@andyburns.uk>: Aug 23 07:08PM +0100

Mike S wrote:
 
> It's a Samsung and it's 4 years old and he uses it a lot.
 
so lets assume a 2016 phone has 16GB
 
> "Note that TLC is a type of NAND memory pioneered by Samsung. It's the
> cheapest to produce but has the worst durability: 4,000 write cycles per
> cell
 
so that's 64 TBW ...
Mike S <mscir@yahoo.com>: Aug 23 09:43PM -0700

On 8/23/2020 11:08 AM, Andy Burns wrote:
>> cheapest to produce but has the worst durability: 4,000 write cycles
>> per cell
 
> so that's 64 TBW ...
 
Are you saying 64 Terrabytes written? That sounds like an awful lot.
It's probably more along the lines of what Phil said. Still, too bad
there's no display of the memory stat's.
Thanks,
Mike
Mike S <mscir@yahoo.com>: Aug 23 09:44PM -0700

On 8/23/2020 4:20 AM, Phil Allison wrote:
 
> I have read that such phones slow down by design as they get old, yep phones do know how old they are. Makers claim it is to preserve running time on a battery that has lost capacity - as Lithium types all do.
 
> Others suspect it is to make you buy a new phone...
 
> .... Phil
 
Thanks, Do you think running a non-std OS bypasses that programming, if
it exists?
Andy Burns <usenet@andyburns.uk>: Aug 24 08:47AM +0100

Mike S wrote:
 
> Are you saying 64 Terrabytes written? That sounds like an awful lot.
 
It does a bit, maybe TBW calculations should include division by
whatever block size the flash uses?
 
> It's probably more along the lines of what Phil said. Still, too bad
> there's no display of the memory stat's.
 
I don't think number of write cycles is about deliberate slowing down,
it's about reaching the point that writes start failing.
 
I've heard complaints about Apple deliberately slowing down older
devices, other manufacturers not so much.
tabbypurr@gmail.com: Aug 23 07:19PM -0700

On Sunday, 23 August 2020 03:26:43 UTC+1, Paul Drahn wrote:
 
> thick. Original motor is not powerful enough. She has to help the
> machine by hand.
> Paul
 
Damn. I once sewed 12 layers of denim with my oldest one, 1960. It struggled but got there.
 
 
NT
etpm@whidbey.com: Aug 23 05:08PM -0700


>Of course motor rated caps have advantages. So do higher rated non-motor caps.
>But the key point the op appears to have not noticed is that his crude paper cap has already lasted over 70 years. That is more than good enough.
 
>NT
So you suggested that I stuff the old cap with a new cap(s). I knew
new motor run caps were too big to fit in the old cap case. You
suggested I use modern caps with the same ratings. I wondered why
motor run caps are still so much physically larger than caps with the
same specs but which are not motor run caps. Then you post the answer
above. I am not sure why you even bothered.
Eric
 
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etpm@whidbey.com: Aug 23 05:11PM -0700

On Sun, 23 Aug 2020 07:20:43 -0700 (PDT), "pfjw@aol.com"
 
>We do not know that at all. What we do know is that *FINALLY* Eric has gotten around to dealing with it.
 
>Peter Wieck
>Melrose Park, PA
I was going to go back in time to replace that cap but my time machine
was serviced byb me after a few gins so instead I waited until I
bought the grinder in real time, used it for a couple years, posted a
question about it here and now I have a new cap coming.
Eric
 
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Digest for sci.electronics.repair@googlegroups.com - 12 updates in 3 topics

tabbypurr@gmail.com: Aug 22 04:11PM -0700


> Hope that helps.
 
> Peter Wieck
> Melrose Park, PA
 
Of course motor rated caps have advantages. So do higher rated non-motor caps.
But the key point the op appears to have not noticed is that his crude paper cap has already lasted over 70 years. That is more than good enough.
 
 
NT
"pfjw@aol.com" <peterwieck33@gmail.com>: Aug 23 07:20AM -0700

> But the key point the op appears to have not noticed is that his crude paper cap has already lasted over 70 years. That is more than good enough.
 
We do not know that at all. What we do know is that *FINALLY* Eric has gotten around to dealing with it.
 
Peter Wieck
Melrose Park, PA
Fox's Mercantile <jdangus@att.net>: Aug 23 09:37AM -0500


> We do not know that at all. What we do know is that *FINALLY* Eric has gotten around to dealing with it.
 
> Peter Wieck
> Melrose Park, PA
 
What we do know, is that Tabby is consistent about posting irrelevant
comments.
 
--
"I am a river to my people."
Jeff-1.0
WA6FWi
http:foxsmercantile.com
Mike S <mscir@yahoo.com>: Aug 23 02:53AM -0700

I have a friend whose phone slowed down quite a bit, he did the usual
stuff (clear cache, remove unneeded apps including stuff running in the
background) but it's still frustratingly slow. It's a Samsung and it's 4
years old and he uses it a lot.
 
I read about write cycle limits per memory cell here:
 
"Note that TLC is a type of NAND memory pioneered by Samsung. It's the
cheapest to produce but has the worst durability: 4,000 write cycles per
cell versus 10,000 in the more standard MLC type. This might be why
Samsung devices have a reputation for slowing down more than non-Samsung
devices."
https://www.makeuseof.com/tag/phones-slow-usage-years/
 
I was wondering if anyone knows of an app that shows the write count for
memory in an Android phone.
Phil Allison <pallison49@gmail.com>: Aug 23 04:20AM -0700

Mike S wrote:
 
===============
> stuff (clear cache, remove unneeded apps including stuff running in the
> background) but it's still frustratingly slow. It's a Samsung and it's 4
> years old and he uses it a lot.
 
** Google the topic.
 
I have read that such phones slow down by design as they get old, yep phones do know how old they are. Makers claim it is to preserve running time on a battery that has lost capacity - as Lithium types all do.
 
Others suspect it is to make you buy a new phone...
 
 
 
.... Phil
Paul Drahn <pdrahn@jodeco.com>: Aug 22 12:22PM -0700


> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
 
I bought one of those for my wife almost 60 years ago. She still uses it
for all her sewing. I bought a complete rebuild kit a few years ago and
still have the leftover pieces. The biggest problem is lint and dust
collection, but you have taken care of that.
 
Have you actually tried sewing cloth with the machine. My wife seldom
operates it at full speed. Sewing with the machine is an art, not a race.
 
And the foot control is a wire-wound resistor with a slider.
 
Paul
etpm@whidbey.com: Aug 22 01:34PM -0700

On Sat, 22 Aug 2020 12:22:34 -0700, Paul Drahn <pdrahn@jodeco.com>
wrote:
 
>operates it at full speed. Sewing with the machine is an art, not a race.
 
>And the foot control is a wire-wound resistor with a slider.
 
>Paul
Yeah, I do sew with it. That's why I bought it. I have a larger
machine that is really heavy and a real chore to set up. That little
featherweight is a joy to use. It is supposed to be able to sew
leather but the motor stalls. Looking online for information about
this machine I found out all sorts of folks collect them and actually
use them a lot. I also found a zig zag attachment that I use when
patching holes in my work shirts.
Eric
tabbypurr@gmail.com: Aug 22 04:15PM -0700

> operating control. And the best way to check it.
> Thanks,
> Eric
 
Simple: connect it up without the controller to see how fast it goes.
Didn't know zigzag adaptors existed for ancient machines
Some early electric machines are quite slow.
 
 
NT
Phil Allison <pallison49@gmail.com>: Aug 22 06:02PM -0700

Paul Drahn wrote:
 
=================
 
> Have you actually tried sewing cloth with the machine. My wife seldom
> operates it at full speed. Sewing with the machine is an art, not a race.
 
> And the foot control is a wire-wound resistor with a slider.
 
** Some Singer models use that and others have triac controllers.
 
One I saw recently had an "air controller" - model 6233.
 
https://www.shopgoodwill.com/Item/85245157
 
Yep, the foot pedal fed compressed air to the machine via a rubber tube.
 
https://www.perfecttimingsewing.com/product-page/singer-air-foot-controller
 
Not sure how that activated a triac circuit.
 
 
 
..... Phil
Paul Drahn <pdrahn@jodeco.com>: Aug 22 07:26PM -0700

> use them a lot. I also found a zig zag attachment that I use when
> patching holes in my work shirts.
> Eric
 
Wife has trouble patching denim with hers, if more than 2-3 layers
thick. Original motor is not powerful enough. She has to help the
machine by hand.
Paul
Michael_A_Terrell <terrell.michael.a@gmail.com>: Aug 22 11:44PM -0400

Paul Drahn wrote:
 
> Have you actually tried sewing cloth with the machine. My wife seldom
> operates it at full speed. Sewing with the machine is an art, not a race.
 
> And the foot control is a wire-wound resistor with a slider.
 
 
My mother hated those. She would have me install one of the carbon
pile type, because it gave a smoother control. I would save the old ones
and add a few extra disks to them to return them to like new condition.
The wirewound controller changes speed in steps, not in a linear
fashion. I also replaced old motors when they no longer had enough
torque for thicker material. She sewed six to ten hours a day, and wore
out eight commercial grade machines.
 
 
--
Never piss off an Engineer!
 
They don't get mad.
 
They don't get even.
 
They go for over unity! ;-)
Clifford Heath <no.spam@please.net>: Aug 23 02:57PM +1000

> machine that is really heavy and a real chore to set up. That little
> featherweight is a joy to use. It is supposed to be able to sew
> leather but the motor stalls.
 
Leather is much easier to sew with the specialised needles, which have a
sharp triangular point.
 
CH
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