sci.electronics.repair@googlegroups.com

Today's topics:

* Grandata - 2 messages, 2 authors
http://groups.google.com/group/sci.electronics.repair/t/c4eb9587fcbba667?hl=en
* Ion it USB turntable - 13 messages, 8 authors
http://groups.google.com/group/sci.electronics.repair/t/0a4174ad69858759?hl=en
* Digital Optical to Analog Converter - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/d6eac4949d838497?hl=en
* Repaired Harbor Freight digital caliper - 3 messages, 3 authors
http://groups.google.com/group/sci.electronics.repair/t/d8587e526bcdbeaf?hl=en
* good - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/31fb92264cebec9a?hl=en

==============================================================================
TOPIC: Grandata
http://groups.google.com/group/sci.electronics.repair/t/c4eb9587fcbba667?hl=en
==============================================================================

== 1 of 2 ==
Date: Sat, Nov 19 2011 12:37 am
From: "N_Cook"

Rajni Bhudia <grandata.trading@gmail.com> wrote in message
news:798e2eca-c385-4043-8c72-656f83acaaaf@f29g2000yqa.googlegroups.com...
> Dear Group Member
>
> Just to advise that Grandata is still running and certainly has not
> 'Gone down the pan', We are still one of the largest component
> suppliers in the Uk and have also added numerous other products to our
> website.
>
> Our old paper catalogue did list a lot of components which are still
> not listed on the website, please always refer to the catalogue and
> the website for components, should this fail then please email us and
> we can try to find any special component that you may require and we
> do our level best to help.
>
> Kind Regards
>
> Grandata
>
>

I have your paper 1999 catalogue in front of me. So are you telling me that
the ICs listed from page 10 to page 18 are still carried ( if not sold out
of course) but not found in stock if using your on-line search box. Whatever
IC (outside of power devices) I found in the paper listing was no longer
mentioned on the on-line cat .

== 2 of 2 ==
Date: Sat, Nov 19 2011 1:31 pm
From: "Ian Field"

"Rajni Bhudia" <grandata.trading@gmail.com> wrote in message
news:798e2eca-c385-4043-8c72-656f83acaaaf@f29g2000yqa.googlegroups.com...
> Dear Group Member
>
> Just to advise that Grandata is still running and certainly has not
> 'Gone down the pan', We are still one of the largest component
> suppliers in the Uk and have also added numerous other products to our
> website.
>
> Our old paper catalogue did list a lot of components which are still
> not listed on the website, please always refer to the catalogue and
> the website for components, should this fail then please email us and
> we can try to find any special component that you may require and we
> do our level best to help.
>
> Kind Regards
>
> Grandata

Just out of curiosity - do you do PSU capacitor kits for well known model
freeview boxes?

==============================================================================
TOPIC: Ion it USB turntable
http://groups.google.com/group/sci.electronics.repair/t/0a4174ad69858759?hl=en
==============================================================================

== 1 of 13 ==
Date: Sat, Nov 19 2011 6:58 am
From: klem kedidelhopper

On Nov 18, 1:47 pm, n...@jecarter.us wrote:
> On Wed, 16 Nov 2011 13:07:05 -0800 (PST), klem kedidelhopper
>
> <captainvideo462...@gmail.com> wrote:
> >Got this thing in for repair. It has no output from either the RCA
> >cables on line or phono out or the USB out. The interface board has a
> >great deal of smt circuitry on it and I'm thinking that this is
> >probably a waste of time but I had to ask. Anyone ever worked on one
> >of these? Thanks, Lenny
>
> Not sure it's worth the effort to repair.  You can get a USB turntable
> for $35US plus shipping:
>
> http://www.geeks.com/details.asp?InvtId=VS-2002-SPK

I copy my albums to cassette. With my hearing I'd never realize any
benefit going to the computer. If I was personally interested in
copying my LP's to digital though I don't think I'd buy one of these
cheapie turntables in the first place. In my opinion you're just
asking to have your records ruined. Rather to preserve my records, I
would want to use my nice Thorens turntable with a magnetic cartridge
that tracks at less than a gram, with with anti skating, etc along
with some kind of an analog to digital converter. There must be some
type of "black box" converter that will take either an RIAA phono
signal direct from the cartridge, or a line level signal perhaps from
the tape out of an amp and convert it to digital. Lenny

== 2 of 13 ==
Date: Sat, Nov 19 2011 7:16 am
From: "William Sommerwerck"

"klem kedidelhopper" <captainvideo462009@gmail.com>
wrote in message
news:5cdb407d-c34a-4378-82bd-e466887d9603@w1g2000vba.googlegroups.com...

> I copy my albums to cassette. With my hearing I'd never realize any
> benefit going to the computer. If I was personally interested in
> copying my LP's to digital though I don't think I'd buy one of these
> cheapie turntables in the first place. In my opinion you're just
> asking to have your records ruined. Rather to preserve my records, I
> would want to use my nice Thorens turntable with a magnetic cartridge
> that tracks at less than a gram, with with anti skating, etc along
> with some kind of an analog to digital converter. There must be some
> type of "black box" converter that will take either an RIAA phono
> signal direct from the cartridge, or a line level signal perhaps from
> the tape out of an amp and convert it to digital.

Try this.

http://www.parasound.com/ParasoundZ/zphonoUSB.php

Disclaimer: Except for my Vendetta head amp, my tuner, controller, and power
amps are Parasound. I'm very friendly with the company, and John Curl, who
designed my head amp and power amps. I have no hesitation recommending
Parasound products.

== 3 of 13 ==
Date: Sat, Nov 19 2011 8:34 am
From: "Gareth Magennis"

"William Sommerwerck" <grizzledgeezer@comcast.net> wrote in message
news:ja8h9g$8rf$1@dont-email.me...
> "klem kedidelhopper" <captainvideo462009@gmail.com>
> wrote in message
> news:5cdb407d-c34a-4378-82bd-e466887d9603@w1g2000vba.googlegroups.com...
>
>> I copy my albums to cassette. With my hearing I'd never realize any
>> benefit going to the computer. If I was personally interested in
>> copying my LP's to digital though I don't think I'd buy one of these
>> cheapie turntables in the first place. In my opinion you're just
>> asking to have your records ruined. Rather to preserve my records, I
>> would want to use my nice Thorens turntable with a magnetic cartridge
>> that tracks at less than a gram, with with anti skating, etc along
>> with some kind of an analog to digital converter. There must be some
>> type of "black box" converter that will take either an RIAA phono
>> signal direct from the cartridge, or a line level signal perhaps from
>> the tape out of an amp and convert it to digital.
>
> Try this.
>
> http://www.parasound.com/ParasoundZ/zphonoUSB.php
>

Or perhaps this if the Parasound is a little O.T.T.

http://www.studiospares.com/audio-interfaces/behringer-u-phono-ufo202/invt/382390/?source=215_73&gclid=CM3rz56Qw6wCFUEb4QodOniRpg

Gareth.

== 4 of 13 ==
Date: Sat, Nov 19 2011 11:42 am
From: Nelson

On Sat, 19 Nov 2011 09:58:54 -0500, klem kedidelhopper wrote
(in article
<5cdb407d-c34a-4378-82bd-e466887d9603@w1g2000vba.googlegroups.com>):

> In my opinion you're just
> asking to have your records ruined.

You know, I see that comment all the time and I wonder what the basis
for it is. I know about the tracking pressure, how good the needle is,
etc. But you are just playing it _once_ for crikey's sake. And, if
you are converting them to digital, you probably don't have an more use
for the vinyl anyway.

--
Nelson

== 5 of 13 ==
Date: Sat, Nov 19 2011 12:27 pm
From: "William Sommerwerck"

"Nelson" <nelson@nowhere.com> wrote in message
news:0001HW.CAED70D900EC0957B02919BF@news.astraweb.com...
> On Sat, 19 Nov 2011 09:58:54 -0500, klem kedidelhopper wrote
> (in article
> <5cdb407d-c34a-4378-82bd-e466887d9603@w1g2000vba.googlegroups.com>):

>> In my opinion you're just
>> asking to have your records ruined.

> You know, I see that comment all the time and I wonder what the basis
> for it is. I know about the tracking pressure, how good the needle is,
> etc. But you are just playing it _once_ for crikey's sake. And if you are
> converting them to digital, you probably don't have any more use for the
> vinyl, anyway.

Which is all the more reason for making a really good transfer. Record
damage or not, a cheap ceramic pickup is not going to give the sound quality
of a decent magnetic pickup. The catch, of course, is that a good 'table,
pickup, preamp, ADC, etc, aren't cheap.

== 6 of 13 ==
Date: Sat, Nov 19 2011 12:48 pm
From: Peter Hill

On Sat, 19 Nov 2011 16:34:37 -0000, "Gareth Magennis"
<sound.service@btconnect.com> wrote:

>
>
>"William Sommerwerck" <grizzledgeezer@comcast.net> wrote in message
>news:ja8h9g$8rf$1@dont-email.me...
>> "klem kedidelhopper" <captainvideo462009@gmail.com>
>> wrote in message
>> news:5cdb407d-c34a-4378-82bd-e466887d9603@w1g2000vba.googlegroups.com...
>>
>>> I copy my albums to cassette. With my hearing I'd never realize any
>>> benefit going to the computer. If I was personally interested in
>>> copying my LP's to digital though I don't think I'd buy one of these
>>> cheapie turntables in the first place. In my opinion you're just
>>> asking to have your records ruined. Rather to preserve my records, I
>>> would want to use my nice Thorens turntable with a magnetic cartridge
>>> that tracks at less than a gram, with with anti skating, etc along
>>> with some kind of an analog to digital converter. There must be some
>>> type of "black box" converter that will take either an RIAA phono
>>> signal direct from the cartridge, or a line level signal perhaps from
>>> the tape out of an amp and convert it to digital.
>>
>> Try this.
>>
>> http://www.parasound.com/ParasoundZ/zphonoUSB.php
>>
>
>
>Or perhaps this if the Parasound is a little O.T.T.
>
>http://www.studiospares.com/audio-interfaces/behringer-u-phono-ufo202/invt/382390/?source=215_73&gclid=CM3rz56Qw6wCFUEb4QodOniRpg
>
>
>Gareth.

That's expensive. OK it's got a pre-amp so you don't have to use line
and an output (like what computer with USB doesn't have sound built
in?) but I think it's the copy of Audacity vinyl restoration that
costs.

Video + audio capture £4.60.
http://www.amazon.co.uk/gp/product/B0011N9QNC/ref=pd_lpo_k2_dp_sr_2?pf_rd_p=103612307&pf_rd_s=lpo-top-stripe&pf_rd_t=201&pf_rd_i=B002H3BSCM&pf_rd_m=A3P5ROKL5A1OLE&pf_rd_r=1YEVDN19JPPGH9MN8D3F

Anyone know of freeware click remover etc?
--
Peter Hill
Spamtrap reply domain as per NNTP-Posting-Host in header
Can of worms - what every fisherman wants.
Can of worms - what every PC owner gets!

== 7 of 13 ==
Date: Sat, Nov 19 2011 12:56 pm
From: "Gareth Magennis"

"Peter Hill" <peter.usenet1@nospam.demon.co.uk> wrote in message
news:eutfc7tpv214h9aljc39q9bdtrg3rn3vi9@4ax.com...
> On Sat, 19 Nov 2011 16:34:37 -0000, "Gareth Magennis"
> <sound.service@btconnect.com> wrote:
>
>>
>>
>>"William Sommerwerck" <grizzledgeezer@comcast.net> wrote in message
>>news:ja8h9g$8rf$1@dont-email.me...
>>> "klem kedidelhopper" <captainvideo462009@gmail.com>
>>> wrote in message
>>> news:5cdb407d-c34a-4378-82bd-e466887d9603@w1g2000vba.googlegroups.com...
>>>
>>>> I copy my albums to cassette. With my hearing I'd never realize any
>>>> benefit going to the computer. If I was personally interested in
>>>> copying my LP's to digital though I don't think I'd buy one of these
>>>> cheapie turntables in the first place. In my opinion you're just
>>>> asking to have your records ruined. Rather to preserve my records, I
>>>> would want to use my nice Thorens turntable with a magnetic cartridge
>>>> that tracks at less than a gram, with with anti skating, etc along
>>>> with some kind of an analog to digital converter. There must be some
>>>> type of "black box" converter that will take either an RIAA phono
>>>> signal direct from the cartridge, or a line level signal perhaps from
>>>> the tape out of an amp and convert it to digital.
>>>
>>> Try this.
>>>
>>> http://www.parasound.com/ParasoundZ/zphonoUSB.php
>>>
>>
>>
>>Or perhaps this if the Parasound is a little O.T.T.
>>
>>http://www.studiospares.com/audio-interfaces/behringer-u-phono-ufo202/invt/382390/?source=215_73&gclid=CM3rz56Qw6wCFUEb4QodOniRpg
>>
>>
>>Gareth.
>
> That's expensive. OK it's got a pre-amp so you don't have to use line
> and an output (like what computer with USB doesn't have sound built
> in?) but I think it's the copy of Audacity vinyl restoration that
> costs.
>
> Video + audio capture £4.60.
> http://www.amazon.co.uk/gp/product/B0011N9QNC/ref=pd_lpo_k2_dp_sr_2?pf_rd_p=103612307&pf_rd_s=lpo-top-stripe&pf_rd_t=201&pf_rd_i=B002H3BSCM&pf_rd_m=A3P5ROKL5A1OLE&pf_rd_r=1YEVDN19JPPGH9MN8D3F
>

As far as I can tell, that Amazon unit is not a phono pre-amp, it is a line
amp, and will not work at all well with a turntable.

Gareth.

== 8 of 13 ==
Date: Sat, Nov 19 2011 2:28 pm
From: "Michael A. Terrell"

Peter Hill wrote:
>
> Anyone know of freeware click remover etc?

Older versions of 'Cool Edit', from before Adobe bought it.

--
You can't have a sense of humor, if you have no sense.

== 9 of 13 ==
Date: Sat, Nov 19 2011 7:09 pm
From: josephkk

On Fri, 18 Nov 2011 08:03:15 +0000, Peter Hill
<peter.usenet1@nospam.demon.co.uk> wrote:

>On Thu, 17 Nov 2011 15:50:30 -0800 (PST), klem kedidelhopper
><captainvideo462009@gmail.com> wrote:
>
>>On Nov 17, 6:03 pm, b <reverend_rog...@yahoo.com> wrote:
>>> On Nov 16, 10:07 pm, klem kedidelhopper <captainvideo462...@gmail.com>
>>> wrote:
>>>
>>> > Got this thing in for repair. It has no output from either the RCA
>>> > cables on line or phono out or the USB out. The interface board has a
>>> > great deal of smt circuitry on it and I'm thinking that this is
>>> > probably a waste of time but I had to ask. Anyone ever worked on one
>>> > of these? Thanks, Lenny
>>>
>>> If all else fails, bypass the circuitry and just wire the cartridge up
>>> to the RCA output sockets, then you can use the deck like a 'normal
>>> 'TT with any amp having a Phono input.
>>>
>>> -b
>>
>>I would do it if it was mine but I don't think the customer has a
>>stereo system. Lenny
>
>If they are making MP3s from vinyl they must have a computer to copy
>the MP3s to a MP3 player.
>It will have an audio input and sound recorder app.
>So only need a codec to save the recorded input as an MP3. (which they
>probably already have)

It is likely not to be mp3 coming down the USB but wav, raw 16 bit 44.1
kHz sampling, the rest done on the PC.

?-)

== 10 of 13 ==
Date: Sat, Nov 19 2011 7:10 pm
From: josephkk

On Thu, 17 Nov 2011 18:05:35 -0800, "William Sommerwerck"
<grizzledgeezer@comcast.net> wrote:

>> If all else fails, bypass the circuitry and just wire the cartridge up
>> to the RCA output sockets, then you can use the deck like a 'normal
>> 'TT with any amp having a Phono input.
>
>This unit probably has a ceramic pickup. If so, that won't work.
>

Really? Has anybody made those in the past 50 years?

?-)

== 11 of 13 ==
Date: Sat, Nov 19 2011 7:13 pm
From: josephkk

On Sat, 19 Nov 2011 06:58:54 -0800 (PST), klem kedidelhopper
<captainvideo462009@gmail.com> wrote:

>On Nov 18, 1:47 pm, n...@jecarter.us wrote:
>> On Wed, 16 Nov 2011 13:07:05 -0800 (PST), klem kedidelhopper
>>
>> <captainvideo462...@gmail.com> wrote:
>> >Got this thing in for repair. It has no output from either the RCA
>> >cables on line or phono out or the USB out. The interface board has a
>> >great deal of smt circuitry on it and I'm thinking that this is
>> >probably a waste of time but I had to ask. Anyone ever worked on one
>> >of these? Thanks, Lenny
>>
>> Not sure it's worth the effort to repair.  You can get a USB turntable
>> for $35US plus shipping:
>>
>> http://www.geeks.com/details.asp?InvtId=VS-2002-SPK
>
>I copy my albums to cassette. With my hearing I'd never realize any
>benefit going to the computer. If I was personally interested in
>copying my LP's to digital though I don't think I'd buy one of these
>cheapie turntables in the first place. In my opinion you're just
>asking to have your records ruined. Rather to preserve my records, I
>would want to use my nice Thorens turntable with a magnetic cartridge
>that tracks at less than a gram, with with anti skating, etc along
>with some kind of an analog to digital converter. There must be some
>type of "black box" converter that will take either an RIAA phono
>signal direct from the cartridge, or a line level signal perhaps from
>the tape out of an amp and convert it to digital. Lenny

Both forms are readily available in a wide variety of price and in quality
(which do not track).

?-)

== 12 of 13 ==
Date: Sat, Nov 19 2011 7:17 pm
From: josephkk

On Sat, 19 Nov 2011 14:42:33 -0500, Nelson <nelson@nowhere.com> wrote:

>On Sat, 19 Nov 2011 09:58:54 -0500, klem kedidelhopper wrote
>(in article
><5cdb407d-c34a-4378-82bd-e466887d9603@w1g2000vba.googlegroups.com>):
>
>> In my opinion you're just
>> asking to have your records ruined.
>
>You know, I see that comment all the time and I wonder what the basis
>for it is. I know about the tracking pressure, how good the needle is,
>etc. But you are just playing it _once_ for crikey's sake. And, if
>you are converting them to digital, you probably don't have an more use
>for the vinyl anyway.

Pretty much true, but there is always resale value. Original vinyl in
very good condition gets a much better price. And sometimes i have to do
a second capture due to a gonk or other problem in the first one. Decent
equipment always does the job better than crap.

?-)

== 13 of 13 ==
Date: Sun, Nov 20 2011 12:09 am
From: "Geoffrey S. Mendelson"

josephkk wrote:

> Pretty much true, but there is always resale value. Original vinyl in
> very good condition gets a much better price. And sometimes i have to do
> a second capture due to a gonk or other problem in the first one. Decent
> equipment always does the job better than crap.

About 10 years ago a gradute student did a project (I assume for a master's
thesis) where he developed software to "read" the music from a disk
by scanning it using a desktop scanner and processing the raw scanned file.

From what I remember researching it a few years ago, it never went any farther.

IMHO it would bear revisiting because of the improved scanners we have today
(although there are very few ones that can accomodate a 12 inch LP) and
the improved computers. There also has been more research in such things,
but not this one application.

Considering that even with good equipment there is a small amount of wear
caused by the stylus reading the disk and an optical scanner causes none,
one could scan the disk 10 or even 100 times and combine them to improve
accuracy.

Geoff.

--
Geoffrey S. Mendelson, N3OWJ/4X1GM
My high blood pressure medicine reduces my midichlorian count. :-(

==============================================================================
TOPIC: Digital Optical to Analog Converter
http://groups.google.com/group/sci.electronics.repair/t/d6eac4949d838497?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, Nov 19 2011 7:32 am
From: Klay Anderson

We have the Gefen new in stock new for $100.

Klay

==============================================================================
TOPIC: Repaired Harbor Freight digital caliper
http://groups.google.com/group/sci.electronics.repair/t/d8587e526bcdbeaf?hl=en
==============================================================================

== 1 of 3 ==
Date: Sat, Nov 19 2011 7:01 pm
From: "P E Schoen"

I have two Harbor Freight digital calipers, item #47257, and I've had
problems with one of them especially, where the display will go blank. It
seemed to work sometimes if I squeezed the enclosure, and I thought it was a
bad battery or bad connection. But a fresh battery didn't work.

So I took it apart, which meant peeling off a foil backing to expose four
small phillips head screws, which removed the electronics module, and then I
removed the PC board with four even smaller phillips screws. The LCD display
connects to the board with a flexible conductive strip, which relies on
pressure to maintain contact. I cleaned it and the mating contacts on the
PCB, reassembled it, and it now works fine!

My house is always very humid and I think that's what caused the problem.
It's hell on all my tools. Everything is rusty or mildewed.

It's quite interesting to see the mechanism that is used to make
measurements. There is an array of PCB traces that are aligned with an array
of stripes along the length of the caliper, and (I assume) these create
pulses that are counted as the head is moved. But it also needs to know
which way the head is being moved. Probably something like a quadrature
encoder as used for rotary position sensing. I'll have to look it up.

Paul

== 2 of 3 ==
Date: Sat, Nov 19 2011 8:19 pm
From: Jim Yanik

"P E Schoen" <paul@pstech-inc.com> wrote in
news:a4_xq.6861$ov2.2972@newsfe10.iad:

> I have two Harbor Freight digital calipers, item #47257, and I've had
> problems with one of them especially, where the display will go blank.
> It seemed to work sometimes if I squeezed the enclosure, and I thought
> it was a bad battery or bad connection. But a fresh battery didn't
> work.
>
> So I took it apart, which meant peeling off a foil backing to expose
> four small phillips head screws, which removed the electronics module,
> and then I removed the PC board with four even smaller phillips
> screws. The LCD display connects to the board with a flexible
> conductive strip, which relies on pressure to maintain contact. I
> cleaned it and the mating contacts on the PCB, reassembled it, and it
> now works fine!
>
> My house is always very humid and I think that's what caused the
> problem. It's hell on all my tools. Everything is rusty or mildewed.
>
> It's quite interesting to see the mechanism that is used to make
> measurements. There is an array of PCB traces that are aligned with an
> array of stripes along the length of the caliper, and (I assume) these
> create pulses that are counted as the head is moved. But it also needs
> to know which way the head is being moved. Probably something like a
> quadrature encoder as used for rotary position sensing. I'll have to
> look it up.
>
> Paul
>
>

use Boeing Boeshield T-9 to prevent the rusting of your tools.

I wonder if Cramolin/DeOxit would work on the conductive strip?

--
Jim Yanik
jyanik
at
localnet
dot com

== 3 of 3 ==
Date: Sat, Nov 19 2011 9:18 pm
From: Jeff Liebermann

On Sat, 19 Nov 2011 22:19:11 -0600, Jim Yanik <jyanik@abuse.gov>
wrote:

>I wonder if Cramolin/DeOxit would work on the conductive strip?

<http://siber-sonic.com/electronics/caig.html>
Sorta. The original Cramolin contained about 5% oleic acid, which is
great for removing surface oxidation, but is also mildly corrosive to
copper. The current version is DeOxit from Caig Labs. It comes in an
amazing variety of forms, and is allegedly non-corrosive.
<http://store.caig.com/s.nl/sc.2/.f>
The MSDS data shows the active ingredients as a "trade secret". Oh
well.

--
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

==============================================================================
TOPIC: good
http://groups.google.com/group/sci.electronics.repair/t/31fb92264cebec9a?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, Nov 19 2011 8:58 pm
From: jai

http://123maza.com/48/share825/

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