Digest for sci.electronics.repair@googlegroups.com - 7 updates in 3 topics

jurb6006@gmail.com: Jan 24 11:33AM -0800

>"You have a 15 year old kid about to enter college in an electrical engineering >program. What's he (or she) thinking in a sniveling bratty manner? "
 
Actually I thinkj those who go for that have a better, or at least more practical (in a perfect world) mind than those who decide to go for liberal arts. My ilk and I call liberal arts - "basket weaving". Unfortunately that partly applies to musicians. Most of them have regular jobs. One of the best musicians I know is a tileman by day. This guy composed and arrainged a song, and then by overdubbing recorded the whole thing I know. Played the drums, then the bass, then guitar, then lead guitar then keyboards and then sang it.
 
He is still a tileman. the way he is meticulous about shit I would estimate that he is pretty good at it and probably makes decent money. He has played alot of gigs, like at bars and other bvenues, there are a couple of CDs. However, it is like a jump in that business. You are a starving artist until you are not. That is how it is until you curry the favor of a music mogul and he decides that you will be promoted and all that. Of course now if it sells fast enought to make your money before it hits P2P and youtube, you might do alright.
 
I have my opinion on the industry and it is not really what one would call favorable. The old days is how it should be. Local bands send in a tape to the local radio station. They answer the damn phohe and people give their opinion sometimes. Sometimes the DJ just likes it and there weren't twenty fucking lawyers there to sue for royalties right away. They new the value of and appreciated the exposure, which amounts to free advertising if it is any good.
 
That's pretty much how buddy Holly got started from what I hear. They thought the group was Black. Holly had sent a demo tape to a record company I think, and THEY sent it to a radio station. By the time they got ahold of Holly they owed him $70,000. If the stories are true, he also got a gig at the Apollo which is all Black. He got a telegram said "be here, pay is $___" and then when he got there the owner thought a White band would cause a riot. Holly said "OK just give me the money and I'll go home", which didn't set well. The guy let them go on the stage, and instead of a riot, the peopolel were dancing in the aisles. Well maybe a riot but a good one. No looting even, but this was the 1950s.
 
I think the whole industry is fucked up now. I have no idea how one gets "discovered" these days. And the quality ? Let's just say that P2P is not the only reason the industry is not making what it once did.
 
By the time my generation dies off, nobody will probably buy music and it will become a hobby. Seriously, there is no way to enforce copyrights. I got Adobe Audition and it will record through hardware in formats that make a CD look like an eight track tape. It cannot be stopped from recording. This is the ultimate thing the RIAA as afraid of. They were afraid of CD recorders to the point where they made the manufacturers require only music CD blanks would work, and got royalties in advance on the blank media itsaelf. they were not afraid of cassettes. Sure, you could record some off an albul to a cassette to listen to it in your car. but the quality wasn't there.
 
gotta run, this thing doesn't seem to have a save and send later function so I will pontificate more later. the music iundustry is an interesting subject, moreso than a Casio keyboard so, the hijack is fine.
mogulah@hotmail.com: Jan 24 12:20PM -0800

> than those who decide to go for liberal > arts. My ilk and I call liberal arts - > "basket weaving". Unfortunately that
> partly applies to musicians. Most of
> them 
 
Yeah, I imagine that's been the question almost forever. How does someone get famous throwing concert after concert?
 
Do a bunch of statisticians get together at audition after audition and poll audiences on which person for which part is best and the money people come in and finance the show based on the poll results?
 
I wouldn't be surprised.
mogulah@hotmail.com: Jan 24 12:20PM -0800

> than those who decide to go for liberal > arts. My ilk and I call liberal arts - > "basket weaving". Unfortunately that
> partly applies to musicians. Most of
> them 
 
Yeah, I imagine that's been the question almost forever. How does someone get famous throwing concert after concert?
 
Do a bunch of statisticians get together at audition after audition and poll audiences on which person for which part is best and the money people come in and finance the show based on the poll results?
 
I wouldn't be surprised.
Phil Allison <pallison49@gmail.com>: Jan 24 03:45PM -0800


> OH BY THE WAY ! That Watkins I kinda fixed, it says "Watkins Gould". It says "Made for Gould guitars..." and some shit. I knew it didn't say what you said it is supposed to say but now I remember what. Gould. Apparently in England there is/was a Gould guitar company and they had some of these made in their name.
 
 
** That would be " WATKINS GUILD" .
 
Guild are an American guitar maker who also badged the Binson Ecorec as Guild.
 
http://en.wikipedia.org/wiki/Guild_Guitar_Company
 
 
.... Phil
jurb6006@gmail.com: Jan 25 05:07AM -0800

OK, I didn't have it in front of me. Giuld, Gould, so it is Guild. Of England actually. really, England is a misnomers because it has not existed fro hundreds of years. Sposed to call it "Britan". Prissy little bitch.
 
Anyway, my ex-brother-in-law left and old Bell and Howell over here and it is a half track. I am pretty sure I am going to take the head out of that and put it in the Watkins. i will tell tyhem that I went through hell and high water to get this motherfuckers, thought really I was about to throw it out. But he owes us money so, maybe just figure it for some of that. not much though, if I lived in certain places it would cost me more to get rid of the carcass than I could even make on the tape head.
 
Another thing is the impedance, I hope it is close enough. Surely there is an optimum range and they bothj are in it. the only difference is the replacement will be a record/play when the original was only a play. Usually the difference is that the record/play has a slightly wider gap, which helps the record signal penetrate the tape better, whereas the optimum play gap is smaller to catch the higher frequencies.
 
But this thing should at least work. Plus the fact that in what the fuck, 1 this was built, did they care ?
 
Actually they never really cared, what the fuck am I talking about ?
 
Yup, Monday in comes the Bell and Howell. If the head works, then it does. If it does not work then I am back to tryingto find those hen's teeth again.
JC <Chipbee40_SpamNo@yahoo.com>: Jan 24 04:43PM -0500

On 1/23/2015 8:28 AM, Andy wrote:
> are?
 
> Thanks in advance
 
> Andy
 
http://www.vishay.com/diodes/rectifiers/melf/
 
1N6481 maybe?
"Michael A. Terrell" <mike.terrell@earthlink.net>: Jan 24 11:45AM -0500


> I've never heard of 3-in-1. Is it auto mechanics stuff or like liquid wrench? I might go and try a bottle. I keep losing the small pocket sized WD-40 mini-spray can. I'm not really focused on that right now, though.
 
 
It's sold for use in sewing machines. My mother used it for decades,
about a can a year on her commercial sewing machine.
 
 
--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.
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Digest for sci.electronics.repair@googlegroups.com - 10 updates in 3 topics

"Jonny Quest" <nobody@noreply.com>: Jan 23 11:29PM -0500

Phone Circuit.
 
a 3-way switch turns phone service on/off from 2 locations
 
an LED indicates when the phone is on/off at the 2 locations
 
a switch toggles phone service between the land line (local) and internet
phone (long distance)
 
N.C. contacts permit use of the phone when power outages disable the relay
coil.
 
http://www.stonetabernacle.com/PHONE_CIRCUIT.html
mogulah@hotmail.com: Jan 24 08:33AM -0800

On Friday, January 23, 2015 at 11:29:14 PM UTC-5, Jonny Quest wrote:
 
> N.C. contacts permit use of the phone when power outages disable the relay
> coil.
 
> http://www.stonetabernacle.com/PHONE_CIRCUIT.html
 
Right, but why pay for it? Because that's before Apple and PC computers started going wireless and/or high speed internet.
 
Now you can do all that from a desktop, tablet or your wireless phone service (like with "Skype" and "MajicJack" and through most chat rooms.
Ian Jackson <ianREMOVETHISjackson@g3ohx.demon.co.uk>: Jan 23 11:32PM

In message <c651bc31-4fa7-4361-a5fc-5e651a271821@googlegroups.com>, Phil
Allison <pallison49@gmail.com> writes
 
>The shafts of small AC motors in turntables and tape recorders and fans
>sometimes jam tight because of this and a little WD40 gets them running
>again in seconds.
 
I had a PC power supply plain bearing fan which seized-up absolutely
solid. After applying some WD40 (and, I believe, it needed the tip of a
hot soldering iron applied to the end of the spindle) I eventually got
it freed off. I treated it to a little more WD40, cleaned off the
surplus, replaced the rubber bung etc - and it was still running happily
18 months later, when I decided to do another service. This time I gave
it a couple of drops of 3-in-1.
 
--
Ian
mogulah@hotmail.com: Jan 24 07:51AM -0800

On Friday, January 23, 2015 at 6:32:23 PM UTC-5, Ian Jackson wrote:
> surplus, replaced the rubber bung etc - and it was still running happily
> 18 months later, when I decided to do another service. This time I gave
> it a couple of drops of 3-in-1.
 
I've never heard of 3-in-1. Is it auto mechanics stuff or like liquid wrench? I might go and try a bottle. I keep losing the small pocket sized WD-40 mini-spray can. I'm not really focused on that right now, though.
 
Right now, I'm bogged down trying to clean a toilet drain. The new weight loss stuff is clogging plumbing drains a lot quicker. I'm going to try to find a little piece, maybe just 10 feet or so - of snake line fish tape and swirl it with some laundry detergent. You know, the new 3x stuff. That should really clean the line out. Or is it time for muriatic acid. I don't know. We'll see.
mogulah@hotmail.com: Jan 24 07:57AM -0800

> detergent. You know, the new 3x stuff. That should really
> clean the line out. Or is it time for muriatic acid. I don't
> know. We'll see.
 
The truth is, sometimes I can't get out from these video games. Ha ha.
Ian Jackson <ianREMOVETHISjackson@g3ohx.demon.co.uk>: Jan 24 04:17PM

In message <0153caba-4298-4f0c-984b-d9c8eb7bf763@googlegroups.com>,
mogulah@hotmail.com writes
 
>I've never heard of 3-in-1. Is it auto mechanics stuff or like liquid
>wrench? I might go and try a bottle. I keep losing the small pocket
>sized WD-40 mini-spray can.
 
http://www.3inone.com/original/
Normally, one can will serve a household for a lifetime. However, it
suffers from the same problem as your can of WD40, ie you can never find
it when you need it - so you need to buy another. As a result, you end
up with several cans of various vintages, distributed all over the house
and garage.
 
 
 
--
Ian
Phil Allison <pallison49@gmail.com>: Jan 23 03:53PM -0800


> Not that they have all that much money, but musicians are a little bit like (and I hate to use the term because I resemble it some) audiophools. They like the tube stuff, and even older solid state stuff.
 
 
** IME, musicians are even worse than audiophools.
 
Audiphools listen only to recorded music with a bunch of equipment they know and can see, decided if they like the sound or not and blame the least likely piece of equipment for the latter outcome.
 
Musicians listen to THEMSELVES playing via equipment they know, can see and fiddle with, decide if they like the sound and blame the equipment if they do not.

> It's wierd. At flat response I can hear the difference between my Pioneer 850 and POhase Linear 400/2. At flat response there should beno difference. I have checked them with a 1,000 Hz square wave and they both reproduce that perfectly art flat response/tone off. the other day my buddy brough ove two CD players, well changers and one was a DVD changer. He heard a difference between them.
 
** All depends how you do the listening test.
 
The usual "sample of music via A followed by the same sample via B" always produces an audible difference - even when A and B are the exact same item.
 
Famous saying: " Human audio memory is short and treacherous "
 
For a valid test, the listener must NOT be aware of which item ( brand, model etc) is in use at any point in time and must NOT have to remember what was previously heard. How the hell do you do that ??
 
It's simple - make it possible for the listener to instantly swap items WHILE music is playing, any time they chose. Also make sure there is no change in level when this happens. IOW use a remote operated relay to do the switching and give the listener the button.
 
With a pair of items that one would reasonably expect ( based on performance testing ) to sound exactly the same - they now do.
 
With a pair of amplifiers, this is easy - the relay ( DPCO type ) merely switches the speakers from one amp to the other. Long as the levels are matched and the outputs are in phase, this produces a seamless result - ie no audible click or interruption.
 
I have done this test many times and the reaction from listeners is always the same: "Phil, the button is not working".
 
So I switch one amp off and prove that it is.
 
 
 
.... Phil
jurb6006@gmail.com: Jan 24 12:02AM -0800

>"So I switch one amp off and prove that it is. "
 
The acid test. That means if they don't notice, they might be on acid. It's like they have an echoplex in their head.
 
OH BY THE WAY ! That Watkins I kinda fixed, it says "Watkins Gould". It says "Made for Gould guitars..." and some shit. I knew it didn't say what you said it is supposed to say but now I remember what. Gould. Apparently in England there is/was a Gould guitar company and they had some of these made in their name.
 
I replaced he tape in it and now it works. However the second head is defective. Push the middle bitton and it gets all kinds of noisy.
 
Here's a guy who went nuts over one of these things :
 
http://www.backfromthesixties.co.uk/watkins_copicat_mkii
 
The actual print is down the page. The play heads are all in series and switches short them out. Damn, I would have spared the horses or whatever and got a whole nother 12AX7 for three bucks and had it alot better.
 
This one has been fitted with an RCA plug for the output.
 
I got a possible source for a head number two, which is defective. Real noisy and no sound, at least recorded sound. Haven't checke the DC resistance yet but I suspect I will find it open.
 
I actually might have one. Ex bor-in-law statyed here fro a little bit and he left an old Bell And Howell. The head in that is a half track. So are these. I looked./ I looked when I first saw the thing, I wanted to see a full track head but nope, they did not get their feet that deep into it and just used half track heads.
 
Nother thing, this unit looks a little different than the one on that page. It REALLY looks like the heads are just screwed down and that is that. Really, if the tape speed is fast enough the azimuth is not all that critical, and we are talking what, 1950 here ? In tis one it really looks like the heads just screw down and that'ss that.
 
Next time in I will tear into that middle head that doesn't work. Hey, maybe I find a wire needs soldered. One thing about this job is now I know why they bought the thicker solder. I use it by the pound, pretty much. Over 80 % of my preapirs only involve solder and of course my time. Been there over a month and only ordered capacitors once. that should tellya something. Well one that it is not ful time and all that. I kinda wish it was. Whip me back into shape. I'm not that old. Well...
 
Enough for now, people have a limit on how much of my bullshit they can take. Not that it was bullshit, I have no reason to lie. but it was bullshit because it is not about what the topic was. What was that ? I'll have to hit the bacvk button to find out...lol
jurb6006@gmail.com: Jan 24 12:03AM -0800

>"** IME, musicians are even worse than audiophools. "
 
Are you familiar with the phrase "Cash Cow" ?
mogulah@hotmail.com: Jan 24 08:17AM -0800

On Friday, January 23, 2015 at 6:53:40 PM UTC-5, Phil Allison wrote:
 
> Musicians listen to THEMSELVES playing via equipment they
> know, can see and fiddle with, decide if they like the sound
> and blame the equipment if they do not.
 
Its pretty crazy.
 
jurb...@gmail.com was saying that people don't want to read bullshit like this, but I disagree. A lot of this (from a 1960's music perspective) is not weird, but still ... its and odd perspective.
 
You have a 15 year old kid about to enter college in an electrical engineering program. What's he (or she) thinking in a sniveling bratty manner? Probably:
 
"what? you mean you MANUALLY play a guitar? a synthesizer? drums? You're joking right? me and my friends make use our phones to design an interface, CPU, memory, power processor and audio and other hardware all to fit in a microscopic compartment so small, you can't even see it. In some cases - even with a microscope. Because its so small, it will use less energy."
 
Comparing stuff like that with more "traditional" music design and repair that you are used to just makes the whole thing look odd. But hey, it all works if you are comfy, right?.
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Digest for sci.electronics.repair@googlegroups.com - 7 updates in 5 topics

mroberds@att.net: Jan 18 10:22AM

> There is very little out there on this thing, one sold on eBay, and
> there is a monitor or something with the same or similar model number
> that polluts the web results.
 
You may have seen these already:
 
One guy on a forum bought one from another guy on that forum. No tech
info, but pics of it lit up and working.
http://www.audiokarma.org/forums/showthread.php?t=443860
 
Another guy on that same site was trying to fix one that had a hum
in the audio:
http://mail.audiokarma.net/forums/showthread.php?p=8337075
 
From that thread...
 
"I recapped the power supply and found that the glue used with some of
the bigger caps had eaten away the leads of a diode and a resistor.
But it didn't hum, so I don't know...just throwing an idea out there."
 
There are a couple of images of the boards posted in that thread, but
you have to be a member of the forum to see them.
 
A "what's it worth" site that has dates of 1987 to 1989:
http://www.usedprice.com/items/audio/nec/tuner/t710-digital-28507.html
 
Hey, this one has a little bit of technical description:
http://fmtunerinfo.com/reviewsM-N.html#NEC
 
Quoting the above link:
 
- Thanks to our contibutor Dave N. for this writeup: "The T-710 is a
- 4-gang, dual-gate front end MOSFET design, that features copper foil
- capacitors. That means that it still sounds like new, after 15 or so
- years, and is very quiet. The T-710 has wide/narrow bandwidths,
- separate mute/mono switching, fluorescent display, auto and manual
- tuning of .2 kHz, calibration tone and auto and preset channel scan.
- [...] The specs include usable sensitivity of 10.8 dBf, S/N ratio of
- 78 dB stereo and 85 dB mono, image rejection ratio of 80 dB and IF
- rejection ratio of 100 dB.
 
There is apparently a review in Stereophile Volume 12 (1989), issues 9,
10, or 11, but Google Books won't show you the full text for it.
 
There is also a review in Stereo Review, December 1987 (probably
Volume 52 Number 12), per http://www.roger-russell.com/magrevsr2.htm .
 
If you get desperate, this place has the service manual for $20 plus
unknown shipping (they don't know how to run a shopping cart):
https://www.agtannenbaum.com/n_cat.htm#NEC
 
and this has it for $17 + $6 shipping:
http://www.stereomanuals.com/man/rep/nec/
 
Standard disclaimers apply: I don't get money or other consideration
from any companies mentioned.
 
Matt Roberds
N_Cook <diverse@tcp.co.uk>: Jan 17 01:13PM

Perhaps there is an error in the Woden/Vox code to date data that is out
there in a book somewhere.
The owner is certain he had this amp and was playing it for his 17th
birthday in 1962 and that it was bought for him the year before , for
109 GBP. He remembers which shop and price but unfortunately no
receipt/warranty paperwork survives
John Robertson <spam@flippers.com>: Jan 16 05:27PM -0800

On 01/16/2015 3:15 PM, Phil Allison wrote:
 
> ** The residue of WD40 is simple mineral oil.
 
> .... Phil
 
Fair enough, Phil, you've drunk the WD-40 kool-aid.
 
My experience with the residue of folks using WD-40 in arcade games is a
gooey residue which always gums up the works and is very difficult to
take apart to repair.
 
A good oil, grease, or synthetic lube is always preferred to a 'wonder'
drug like WD in my books. I guess I'm the anti-WDhrist.
 
(ducking)
 
John ;-#)#
 
--
(Please post followups or tech inquiries to the newsgroup)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
(604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."
"Michael A. Terrell" <mike.terrell@earthlink.net>: Jan 16 09:12PM -0500

John Robertson wrote:
> take apart to repair.
 
> A good oil, grease, or synthetic lube is always preferred to a 'wonder'
> drug like WD in my books. I guess I'm the anti-WDhrist.
 
 
http://www.wd40company.com/files/pdf/msds-wd494716385.pdf
 
--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.
"hrhofmann@sbcglobal.net" <hrhofmann@sbcglobal.net>: Jan 22 02:27PM -0800

Unless it is a simple mechanical problem, keyboards are not worht spending time on. Cheaper to go to a Pawn Shop and get a new working one.
jurb6006@gmail.com: Jan 22 12:39PM -0800

>"Once it took more than an hour of trial and error to get a sound..."
 
Don't you just love all this automatic shit ? Supposed to make things easier right ? Yeah right.
 
I heard of people having problems someties with the sound on an HDMI cable. I think it was that they using a TV as a PC monitor and if, I don't remember which, either the TV or PC had to be on first or there would be no sound. And something like that is really not resovable so they would up just using the analog audoip cables - scrw it, it works. Plus the TV speakers were not likely to be audiophile quality where someone would beed to keep the sound so pure as the driven snow by making the analog chain as short as possible.
jurb6006@gmail.com: Jan 22 01:34PM -0800

>here to test everything, and to display faulty sliders or datapots that
>throw out spurious data randomly (the equivalent of a scratchy pot on a
>guitar amp). "
 
Hmmm. Got a Yamaha that is stuck in sustain as well as port-something that I can never remeber the name. Where it slides from one note to another. I checked all the way form the jacks to the micro and the pulses seem to be right.
 
I wonder if a valid test would be to disable any and all MIDI to eliminat that as the source of the problem. I was kinds thinking the micro itself but am not sure enough to even think about ordereing one, if one can even be had.
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