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  »  New  It’s mad, mad, mad... electricity...  Isotek....  Audio Discussions  Forum     1589  5749956  10-12-2006
10-24-2010 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,486
Joined on 05-28-2004

Post #: 1
Post ID: 14779
Reply to: 14779
I good spot-light for a turntable?
fiogf49gjkf0d
I am looking a light for my TT and it is not as simple. I love to have a very powerful spot light over TT and the light need to be coming from a few direction of to have a long gooseneck.  The regular goosenecks light are very short (table goosenecks will not work) and loose strength very soon. Also I would like the light to be very small and light do not penetrate the back side. I want it to be pretty and do not cost $380. I want it to be able to care 60W halogen bold and with small size be able to dissipate hit and do not meet records from 1-2 feet.

From what I see the medical examination light enclosures looks good but they are price and tend to be white – I need back. Dose anyone come across of a good commentary-available light assembly that I might use?

The Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
11-05-2010 Post does not mapped to Knowledge Tree
Arlequen


Brescia (Italy)
Posts 4
Joined on 11-05-2010

Post #: 2
Post ID: 14850
Reply to: 14779
A good choice ..
fiogf49gjkf0d
 Romy the Cat wrote:
I am looking a light for my TT and it is not as simple. I love to have a very powerful spot light over TT and the light need to be coming from a few direction of to have a long gooseneck.  The regular goosenecks light are very short (table goosenecks will not work) and loose strength very soon. 
The Cat


Here ----------> http://www.ikea.com/us/en/catalog/products/20169658

Less than 10 $ .. and it works fantastic ... I use this cheapo gooseneck led light since two years and I couldn't be happier

Best wishes from northern Italy

ps: my compliments for the Forum .. Mr. Cat


*** In Stylus Veritas!! ***
11-05-2010 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,486
Joined on 05-28-2004

Post #: 3
Post ID: 14852
Reply to: 14850
The Audiophile Light?
fiogf49gjkf0d

Arlequen,

Thank for the suggestion, the shape-wise it is exactly what I am looking for. I have seen a number of similar lights but they are LED lights. I kind of automatically discard the led lights as I though then are not as powerful and not as bright as small halogen lights.  Also, a few similar led lights that I have seen gave an ugly bluish cold light that I happed do not like. I kind of like the idea to have halogen to run at full power what I need to do something with cartridge and then to run it at fraction power vial a dimmer when I juts spin records and need light juts to see where is the beginning of groves or to see the structure of the grove.  Halogen light tend to be soft and have low color temperature when it runs undercooked, even though it is killed the Halogen bulbs a bit sooner.

I do not want to sound overly anal retentive but last week an idea comes to me that make me a bit horny. I have a good vision but how many times we try to lower needle in some specific location… not vision will help you as everything is small and black. So, why do not have a long gooseneck with super powerful Halogen light and combine it with a magnifying lens?  How many times I was forces to use a lens and to look at the tip of needle to see that it picked some dirt. Now pretend that you have 10X magnifying lens with super bright combined in a very small and sexy looking package? That is what I would like to find! There are a number of magnifying lamps out there but they are all a bit utilitarian to my taste. I am looking it to be in black, to be small and to have some hip chick appearance. I would pay up to $200 for such a lamp.

The industry Morons,  – here is the idea for you to produce. Make a good lamp. Then make your marketing department to make statements that you use the light of very specific wavelength that in a very favorite way affects sound. Make the neck of the light that handle over turntable to spray some ions that would de-dust the records. Make a laser light to the shot to the record and to makes the record flatness.  Market it as “Audiophile Light”, make a price tag $1999.99 and to make someone idiot like Michael Framer to spread saliva that the Audiophile Light not only “improve Sound” but it circumstantially “works” as  pregnancy prevention. I am sure your will be able to see thousands of them around the world….

The Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
11-05-2010 Post does not mapped to Knowledge Tree
Arlequen


Brescia (Italy)
Posts 4
Joined on 11-05-2010

Post #: 4
Post ID: 14858
Reply to: 14852
Powerful led
fiogf49gjkf0d
 Romy the Cat wrote:

I kind of automatically discard the led lights as I though then are not as powerful and not as bright as small halogen lights...



That Ikea lamp has a lens in front the led .. and trust me it's powerful
Second no trasformer inside the gooseneck base .. just a little one at the AC plug .. so no AC near the TT ..

My cent!



*** In Stylus Veritas!! ***
11-05-2010 Post does not mapped to Knowledge Tree
Stitch


Behind The Sun
Posts 226
Joined on 01-15-2009

Post #: 5
Post ID: 14863
Reply to: 14858
Expensive, stylish, classic, piece of Art.....nothing for the real Audiophile
fiogf49gjkf0d
Love it



tizio_floor.jpg


Kind Regards
Stitch
02-23-2011 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,486
Joined on 05-28-2004

Post #: 6
Post ID: 15619
Reply to: 14779
A nice solution found
fiogf49gjkf0d

I found very nice solution for my TT light.  What I discovered is that I do not like those light and flimsy lights that I have tried but I like the regular heavy bench light fixture. In addition they are very easy to position to light up the TT under any angle. The problem with them that they do not have a truly narrow lighting pattern and if I want to have really bright spot on my TT then I need to run 100-200W bulb on them that create a Lot of heat on the TT surface.

What I discovered last weekend in Home depot was the new type of LED Flood Light Bulbs. I never used them before but they are absolutely fantastic for my purpose.

http://www.superbrightleds.com/cgi-bin/store/index.cgi?action=DispPage&Page2Disp=%2Fedison_spot.html

There are great variety of them and some of them are very very narrow. I got a few of them and I end up with 8W bulb (believe me or not) the reportedly give light as much as 60W bulb. In my estimation it very much might be true – from a feet and a half from platter it gives VERY bright spot and has practically no hit. The color temperature does not feel annoying and everything else is wonderful as well.

An addition benefit is that threat the LED Flood Light Bulb is really is point source light (I use the one with one single LED) and it gives a very nice and very contrasty reflection of the record surface on the low ceiling on my equipment bay, I can clearly see where is the tonearm on the record and if the record has the center hole off center. Very comfortable.

LED_SpotLight_TT.JPG

I think those new LED Flood Light Bulbs shall trigger a creation of the new type of fixture to host them. If the LED Flood Light Bulb were a bit more indented into own body they might be wonderfully used without any externa;l reflactor ans the have no back or side light on it’s own.

The Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
03-03-2011 Post does not mapped to Knowledge Tree
N-set
Gdansk, Poland
Posts 441
Joined on 01-07-2006

Post #: 7
Post ID: 15685
Reply to: 15619
LED's and bad electricity
fiogf49gjkf0d
I'm not sure if yoy are aware of the fact that LED bulds have small but powerfull voltage
converters inside operating at 40kHz or so, RF poluting the room and the lines. better avoid than filter.
Halogen bulbs (halogen element packed in a normal bulb enclusure) are of course nowhere
close in efficiency  (although from my limited experience
LED efficiency is greatly, GREATLY overblown) but are cleaner and IMHO give much better light.



Cheers,
Jarek
03-03-2011 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,486
Joined on 05-28-2004

Post #: 8
Post ID: 15686
Reply to: 15685
That First generations of LEDs...
fiogf49gjkf0d
 N-set wrote:
I'm not sure if yoy are aware of the fact that LED bulds have small but powerfull voltage
converters inside operating at 40kHz or so, RF poluting the room and the lines. better avoid than filter.
Halogen bulbs (halogen element packed in a normal bulb enclusure) are of course nowhere
close in efficiency  (although from my limited experience
LED efficiency is greatly, GREATLY overblown) but are cleaner and IMHO give much better light.

Yes, N-set, it is know from past times that LED do pollute electricity. If you remember 15 years back there was a lot of talk about it and some of manufactures even made public statement the they do not use LED but instead the micro light bulbs as a prove that they care about sound so much. That all might be very much correct but the question that I ask remains the same: when electricity is good and you use your all bad LED loaded electronics then where the horrible LED influence evaporates?

I am planning another day to make a test of sound with and without light over TT. I have a LOT of dimmers in my hoe and I use them VERY aggressively. Trust me the SS dimmer crap sound like a few bullion LED would not do and it is even very clearly measurable. Still, decupling playback with P2000 I with all honesty did not detect that my dimmer impact sound in any tangible way.

Funny, I so much like them that bought a few more type of those powerful LED Flood Light Bulbs. To my surprise not all of them were producing nice and light. In fact the only first one that has a single LET has even light of a good color temperature. The Bulbs with 4-5 LEDs that I got have some freakish colorful spots in the lit area – I find them less usable.

The biggest problem with Flood Light Bulbs that I have discovered is they are dimmable by SS but in wrong way. You can dim them but you can’t turn them on in dimmed state. It means that you need to max them out, turn them on and then dim them – not comfortable at all. I still us my single LED Flood Light Bulb over my TT, I like it is very bright and very cold. The multi-LED Flood Bulbs I use to lit the surface of the record in my record washing machine – I also love to have a lot of light in there.

In one way of other we are dealing with very first generations of LED Flood Light Bulbs, I am sure they will get better and cheaper with time.

Rsg, Romy the Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
03-03-2011 Post does not mapped to Knowledge Tree
N-set
Gdansk, Poland
Posts 441
Joined on 01-07-2006

Post #: 9
Post ID: 15688
Reply to: 15686
LEDs, LEDs, LEDs my love
fiogf49gjkf0d
LED facade:

LEDfasade.jpg

Mind blowing!

One thing is LED in the circuit as an indicator lamp or, say, SS bias and another is a LED bulb.
The bad element in the bulb is the RF generator. The LEDs in the bulbs are not fed with DC or line freq. but with
RF square wave. Sometimes the RF signal may get so strong that it burns the PCB traces.
A friend of mine is designing now such a converter for some minor local
manufacturer. Before he even starts looking at the scope/SA to evaluate the trash,
he puts a radio next to bulb to listen to it. But of course if you don't detect any sound
problems under all conditions (and the last point is important) the subject is closed.

Multielement leds are trash light-wise and also efficiency wise. I've tried some of those bulbs and sent them all back.
What I've found reasonable are high power leds with the chip from a good manufacturer (cree, etc).
AFAIK, the chip itself produces a UV or close to UV light which exites a phosporous element. The light from this secondary emission
is what we get. The better the phosphor the better the light. I've came across two basic white tones:
 2700K which I truly hate with it's olive tone or cool 6400K, which I guess is a very good choice for the "analytical looking" like
the analog rituals require.I've heard there are also daylight 4000-5000K LEDs but have never tried them.
Remote controlled LED strips are fantastic! I've lit my concrete bookshelves with them and the lightshow
is phenomenal! Can only imagine how the whole building must look like!

Still, at the end of a day, spending 10-12h a day everyday working with my eyes (reading, writing) I cannot tolerate
anything apart from halogen light for work, but that's very personal I guess.

Cheers,
n-set



Cheers,
Jarek
03-03-2011 Post does not mapped to Knowledge Tree
decoud
United Kingdom
Posts 240
Joined on 03-01-2008

Post #: 10
Post ID: 15689
Reply to: 14852
Ministar halogen
fiogf49gjkf0d
A very attractive halogen solution is the Osram Ministar, e.g.

http://www.amazon.co.uk/OSRAM-MINISTAR%C2%AE-MIT-AXIAL-REFLECTOR-20W/dp/B000WL29AQ

It is a low voltage miniature halogen capsule light with a built-in reflector, so easily added to a magnifying glass installation of some kind. They are no longer being made but there are fairly large stocks of them around.
03-03-2011 Post does not mapped to Knowledge Tree
Romy the Cat


Boston, MA
Posts 9,486
Joined on 05-28-2004

Post #: 11
Post ID: 15690
Reply to: 15688
The colors temperature of LEDs.
fiogf49gjkf0d
Since powerful LED are run at very low temperature it is very easy to correct this color and tone by putting thin plastic color film over it, the way how we corrected colors temperature at the time of silver photography. Halogen lights are fine but they unfortunately very seldom come with low power. Try to find MR16 halogen light of 5-10W – very hard. For high power and use at full power halogens are wonderful. BTW, halogens do have problem to be dimed. As I remember form my photography life the halogen regeneration take place only when the halogen bulb runs at max voltage. As the voltage drops then halogen bulb acts as a regular light bulb as the recuperation of cathode stops, effectively shoring he bulb life. I do not think it is truly a big deal as those MR16 live for year as years, but still…

BTW, it would be very cool to have a light bulb with indication of hours on it. Since the light over my TT on only when the TT is running then the life-span of light bulb would indirectly indicate the life-span of cartridges.

The Cat


"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
03-03-2011 Post does not mapped to Knowledge Tree
N-set
Gdansk, Poland
Posts 441
Joined on 01-07-2006

Post #: 12
Post ID: 15693
Reply to: 15690
Count(less) hours
fiogf49gjkf0d
I'm affraid putting the filter in front of LEDs may bring the efficiency down to
halogen...at 10x the cost...which of course is the goal of all osram's, phillipses, and
even eu bureaucrats.

Counting hours is easily done with an hour meter;e.g.

http://www.amazon.com/Sierra-International-56966P-Round-Marine/dp/B0014477MU



Cheers,
Jarek
03-25-2011 Post does not mapped to Knowledge Tree
N-set
Gdansk, Poland
Posts 441
Joined on 01-07-2006

Post #: 13
Post ID: 15845
Reply to: 14779
Polish industrial light
fiogf49gjkf0d
Here is something extra I've just found:
EuroproductsJW-50FT.JPG

Industrial machinery light, no consumer nor art bullshit, built like a tank, steel/alu covered
with industrial plastic. This is used for CNC mills and other big toys.
20W spot halogen, a PLEASURE to operate, not cheap at 100Eu shipped but not too expensive either.
The company is europruducts from poland, the model I've bought is JW-50FT (with 230V trafo built in).

http://www.europroducts.pl/katalog-oswietlenia/lampy-halogenowe-ip65

There are bigger models, quartz lamps, etc. I'm thinking of a second one for the RCM.
The only problem is that somehow denying their pathetic name the web page is only in polish
and at the moment they  do not seem to ship abroad...which is a a sort of stupidity, i've tried
to cure them from.







Cheers,
Jarek
03-26-2011 Post does not mapped to Knowledge Tree
Paul S
San Diego, California, USA
Posts 2,104
Joined on 10-12-2006

Post #: 14
Post ID: 15859
Reply to: 15845
Hmmm???
fiogf49gjkf0d
I've tried a couple of transformer-based lights, but they made noise in my system; so I go back to cheap battery-based lamp (flashlight...).  Of course, noise probably does not matter for CNC...  While I'm dreaming, I'd like a quiet, ignorable plug-in that also can dim...

Best regards,
Paul S
03-26-2011 Post does not mapped to Knowledge Tree
N-set
Gdansk, Poland
Posts 441
Joined on 01-07-2006

Post #: 15
Post ID: 15861
Reply to: 15859
Light noise
fiogf49gjkf0d
This is probably a related question to LED bulbs with their electronic transformer crap inside.
I have not noticed any noise with the full volume up on my Stax O2 so far and
I was intentionally looking for it. There is only a gentle crack when I switch the light off.
But I use at the moment the EMT155st which is...what it is, so I may not hear it all.
Anyway,  I use the light only when changing/adjusting, during the playback
the light is off. I have to ask the manufacturer if the transformer inside
is a normal magnetic one or the electronic crap. I'm as well thinking of moving this lamp
to the RCM and going for another one, more powerfull:

http://www.europroducts.pl/katalog-oswietlenia/kwarcowe-lampy-halogenowe-ip65/JW-55L#produkt

making the 230V/12V trafo myself, far away, and double shielded.
I think dimmers emitt a LOT of RF polution.







Cheers,
Jarek
05-24-2013 Post does not mapped to Knowledge Tree
sunpialia
Posts 1
Joined on 05-24-2013

Post #: 16
Post ID: 19377
Reply to: 14779
Reply
fiogf49gjkf0d
Led lights are best found alternative source for the old energy consuming lights, they last long as they have a better working life about 50000 hrs much better than old forms also they do not harm environment and are available in many colors as Red, Green, Blue, White etc.
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