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 Post subject: Good replacement light for Sylvania Halo Lights?
PostPosted: Sep Tue 19, 2017 3:57 am 
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My Sylvania Halo Light was missing the light tube surrounding the CRT when I got it and the transformer looks like it was unhooked long ago, so I suspect it's bad. I gather from reading comments that this isn't unusual and replacement parts are unobtanium.

So, what kind of lights do some of you use to get the halo light effect?

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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Sep Wed 20, 2017 1:14 pm 
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I would think you could use cool white LED tape. It's flexible, dimable and can be cut to length. The cool white color would match.


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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Sep Wed 20, 2017 9:07 pm 
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Thanks! I hadn't thought of that, but it should work. The lights are close enough together it would probably be even lighting around the screen too.

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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Sep Wed 20, 2017 9:16 pm 
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You will need a 12VDC power supply and use one of these inexpensive LED dimmers.


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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Sep Wed 20, 2017 9:50 pm 
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It may be possible to harvest 12V DC off the TV chassis (like a voltage doubler off the heater winding).


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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Sep Sat 23, 2017 12:16 pm 
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I worked on one a couple of years ago, that had a bad fluorescent tube, so I used an white LED rope light string that one could order by length and could be customized to the proper length. It already had the necessary circuit to connect directly to 120 volt AC. Doubt if it could be dimmed though. You can also take the original fluorescent tube to a neon sign shop and have a new one made, however when I called one of them they said somewhere in the range of $150.


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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Sep Sun 24, 2017 8:26 am 
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You could probably get a neon sign shop to make a new tube for a reasonable amount.


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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Sep Sun 24, 2017 8:37 pm 
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Location: Endicott, NY
Do anyone here have a picture of the Halo Light tube installed on the television? I'm guessing it was made in rectangular shape to go around the TV, but it seems there are no pictures of it online.


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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Sep Mon 25, 2017 2:52 am 
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Location: Waxahachie Texas
50sTransistorRadios wrote:
Do anyone here have a picture of the Halo Light tube installed on the television? I'm guessing it was made in rectangular shape to go around the TV, but it seems there are no pictures of it online.


Here is a link. At 16:22 you'll see the tube.

https://www.youtube.com/watch?v=kaSFyM83vEk

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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Sep Mon 25, 2017 3:04 pm 
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I have LED ceiling flush lights in my kitchen and I have to turn them off when playing my vintage radios also my zenith porthole via airwave.

So just be aware LEDs can interfere with the airwave signal.


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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Sep Mon 25, 2017 5:11 pm 
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Quote:
So just be aware LEDs can interfere with the airwave signal.


The LEDs themselves do not interfere; it is the switching power supply that provides DC to the LEDs that causes the problem.

Image

If you run them from rectified AC (no switch-mode circuit), there won't be any RFI.

Rich


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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Sep Mon 25, 2017 5:36 pm 
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The original Halolight ran off AC through a step-up transformer, IIRC in the range of 800-1200 volts. I have seen a few of them that were going bad and would cause interference in the picture until you turned the Halolight off.

I like the LED idea, as long as the light is evenly distributed and doesn't have any hot spots where each individual LED is located.

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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Sep Wed 27, 2017 4:40 am 
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Crist Rigotti wrote:
50sTransistorRadios wrote:
Do anyone here have a picture of the Halo Light tube installed on the television? I'm guessing it was made in rectangular shape to go around the TV, but it seems there are no pictures of it online.


Here is a link. At 16:22 you'll see the tube.

https://www.youtube.com/watch?v=kaSFyM83vEk


Thanks, it looks like the "Halo Light" is more like a neon tube than a typical florescent lamp.


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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Sep Wed 27, 2017 3:00 pm 
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Location: Pewaukee, WI
The halolites were made for ~1 decade between the early 50's and early 60's. They had many redesigns in that time. IIRC there were some made with thicker fluorescent tubes.


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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Oct Fri 27, 2017 4:09 pm 
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Joined: Dec Sun 02, 2012 2:45 am
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Location: Milan, Indiana
The wife's grandfather was a radio TV repairman from the 50's to the 2000's. He told me that he would regularly disconnect the halo light.
He said that all it really did was force you to turn up the brightness and use up the CRT. Also a marginal CRT
that was too dark to watch was OK when the halo light was disabled. Your light and transformer may be perfectly good.


Randy AB9GO

p.s. As a remembrance:

Earl Ruggles, 93 of Milan passed away Thursday March 14, 2013. Earl was born in Poplar Flats (Tollsboro), Kentucky on Tuesday June 3, 1919. Earl graduated from Napoleon Indiana High School in 1938 and worked in construction and wiring houses for the REMC. He served in the 912th Signal Crop, US Army during WWII in the Pacific where he repaired communications equipment and was one of the first trained on the then new technology of radar. He achieved the rank of Staff Sergeant and trained others to repair electronic equipment. In the 1950's, he opened a radio and TV repair business in Milan which he operated for 49 years. Earl was active in many community organizations and a member of the I.O.O.F. Odd Fellows Lodge for 50 years until the closing of the local lodge.

Earl Ruggles you are missed.


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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Oct Fri 27, 2017 5:07 pm 
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Location: Dallas, TX
shovelhead13746 wrote:
You will need a 12VDC power supply and use one of these inexpensive LED dimmers.

That dimmer may or may not use a switching circuit that could cause interference. Might be better to use a dropping resistor, experiment with value, or linear adjustable regulator.
The strip LED should light the bezel evenly enough if you can mount the strip far enough from the surface.
I would think that if the Halolight wasn't working right there might be interference due to the discharge nature itself.
BTW, "neon" lamps that produce white light are filled with either argon or mercury gas to excite the fluorescent white coating.

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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Oct Sat 28, 2017 12:36 am 
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I had several halo lights that I tried to sell on eBay about 20 years ago. No takers, so I practically gave them away:
Attachment:
halo1.jpg
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Attachment:
halo2.jpg
halo2.jpg [ 60.21 KiB | Viewed 811 times ]

Bob

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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Oct Sat 28, 2017 10:52 pm 
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I've always liked the HaloLight sets. this is probably my favorite model in the lineup. Image


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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Oct Sun 29, 2017 2:45 am 
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For those interested, a very good read about servicing the Sylvania Halolight can be found in the April 1956 issue of Radio & Television News (p.50-51). You'll learn (a.o) that a dead Halolight is not allways due to a defective tube: low room temperature and/or humid weather can prevent the starting of the tube, this trouble has been corrected on later models by the application of a special transparent coating.

The magazine can be downloaded here:

http://americanradiohistory.com/Archive ... 6-04-R.pdf


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 Post subject: Re: Good replacement light for Sylvania Halo Lights?
PostPosted: Nov Thu 02, 2017 3:50 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 233
You could have a neon sign shop make a replacement tube (or possibly even rebuild an existing tube by replacing the electrodes).


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