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 Post subject: Antique light bulbs
PostPosted: Jan Sun 08, 2017 3:58 pm 
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I was looking for some antique replica light bulbs for a project and found a wide selection reasonably priced on Ebay (China). I am currently waiting to see how they make the long trip. Here is a sample.
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 Post subject: Re: Antique light bulbs
PostPosted: Jan Sun 08, 2017 4:14 pm 
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Location: Milton, FL 32570
You can get those at Home Depot or Lowes here in NW FL. I use to use one in my Dim bulb tester till someone decided they liked it better.

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 Post subject: Re: Antique light bulbs
PostPosted: Jan Sun 08, 2017 4:41 pm 
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reeves03 wrote:
You can get those at Home Depot or Lowes here in NW FL. I use to use one in my Dim bulb tester till someone decided they liked it better.

jason

I am putting it in a Dim bulb tester or rather a simulated tester which is part of an actual isolation transformer/tester I am fabricating. Your bulb may have grown legs and walked off on its own. I have heard of that happening.

Lowes does not have that wide a selection and are more expensive. They only have a couple at $5 plus tax and most are over $20. Below is a picture of one from China which is 60 watts at $3.16 total cost. A premium type is more money of course. One I saw was 6" wide.
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 Post subject: Re: Antique light bulbs
PostPosted: Jan Sun 08, 2017 4:47 pm 
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Location: Oxford, MI
In the above picture, how is the bulb illuminated while the person holds the base with no socket? :wink:

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 Post subject: Re: Antique light bulbs
PostPosted: Jan Sun 08, 2017 4:54 pm 
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Location: Laflin, PA
Hcompton79 wrote:
In the above picture, how is the bulb illuminated while the person holds the base with no socket? :wink:

It always worked for Uncle Fester!
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 Post subject: Re: Antique light bulbs
PostPosted: Jan Sun 08, 2017 4:56 pm 
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Location: Laflin, PA
I have seen a somewhat limited selection of these in the local Walmart along with the LED versions which I have purchased.

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 Post subject: Re: Antique light bulbs
PostPosted: Jan Mon 09, 2017 4:21 am 
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Location: Baltimore, MD
I use the replica bulbs in my house. I've had several kinds over the years and have found that the best quality ones come from two companies - Ferrowatt and Bulbrite. These are the only two I'll use. The Bulbrite bulbs are 3000 hour bulbs.

Don't bother with the Lowes/HD or other knockoffs, as you'll be disappointed.

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 Post subject: Re: Antique light bulbs
PostPosted: Jan Mon 09, 2017 6:27 am 
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Joined: Sep Thu 23, 2010 6:37 am
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Location: Powell River BC Canada
The replica S-1 filament bulbs were at Walmart, and then they started to sell the replica S-1
LED filament bulb considerably more costly.

The ones with the wire filament, same lamp different package the popped up in the Dollar store for
$4.00 each.

The squirrel cage S-1 bulbs created havoc many years ago with high frequency Barkhausen
radiation. The replica lamps do not, as far as I know.

These ones shown below, in my stash, however do.

Attachment:
Package_5_Ajax_Tipless_25_Watt.jpg
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 Post subject: Re: Antique light bulbs
PostPosted: Jan Mon 09, 2017 2:44 pm 
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radiotechnician wrote:
The replica S-1 filament bulbs were at Walmart, and then they started to sell the replica S-1
LED filament bulb considerably more costly.

The ones with the wire filament, same lamp different package the popped up in the Dollar store for
$4.00 each.

The squirrel cage S-1 bulbs created havoc many years ago with high frequency Barkhausen
radiation. The replica lamps do not, as far as I know.

These ones shown below, in my stash, however do.

Attachment:
Package_5_Ajax_Tipless_25_Watt.jpg

OK, you got me. I had to look that up (google). I found Barkhausen Effect (noise) but not Barkhausen Radiation which sounds unhealthy.


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 Post subject: Re: Antique light bulbs
PostPosted: Jan Mon 09, 2017 3:02 pm 
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A lot of the bulbs from China are 220v but I have 220v on my work bench and can use them there. I bought a 110/220 500w voltage converter for other appliances I have but it is not too portable so is relegated to the bench. Portable wall plugs are available for travellers so a 220 lamp could be used to take advantage of those cheap bulbs. I know Zenith82 says they are crap but I have some coming and will submit my findings once they arrive.


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 Post subject: Re: Antique light bulbs
PostPosted: Jan Mon 09, 2017 7:49 pm 
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Joined: Sep Thu 23, 2010 6:37 am
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Location: Powell River BC Canada
Barkhausen noise is ancient. Pops in earphones, listening as DC current, magnetizes
iron cores of transformers.

The radiation from the lights is something else. It can mess up TVs with aerials blocks away.

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 Post subject: Re: Antique light bulbs
PostPosted: Jan Mon 09, 2017 7:56 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 7711
Location: Baltimore, MD
Here are the product lines of Ferrowatt and Bulbrite:

http://www.ferrowatt.com/light-bulbs/

http://www.bulbrite.com/nostalgic/collections/nostalgic-bulbs

Be careful when ordering these online, as a lot of the knockoff vendors will lift pictures from these two to advertise their products. Also be careful when ordering them from Amazon. A few weeks ago, I found what looked to be an unbelievable price on the Bulbrite squirrel-cage filament bulbs (WITH the Bulbrite part #), only to have them arrive and they are the knockoffs in plain boxes. I politely shipped them back and told Amazon their vendor had pulled a "bait and switch".

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 Post subject: Re: Antique light bulbs
PostPosted: Jan Mon 09, 2017 8:01 pm 
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Location: S. Dartmouth MA 02748-1225 USA
The bulbs with floppy, soggy filaments will dance like crazy when a magnet gets near. AC field causes a motor action...

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 Post subject: Re: Antique light bulbs
PostPosted: Jan Mon 09, 2017 8:02 pm 
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Location: Oxford, MI
Here's an article discussing TV interference from older light bulbs:

http://www.rexophone.com/?p=1081

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 Post subject: Re: Antique light bulbs
PostPosted: Jan Mon 09, 2017 9:14 pm 
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Hcompton79 wrote:
Here's an article discussing TV interference from older light bulbs:

http://www.rexophone.com/?p=1081


That is interesting and it provides another link to a much more in depth discussion of this. It seems the bulbs oscillations were transmitting RF Radiation somewhat like a radio which is what caused the interferance on the TV screens.

http://www.radiomuseum.org/forum/rustik ... ments.html


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 Post subject: Re: Antique light bulbs
PostPosted: Jan Mon 09, 2017 10:56 pm 
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Here's what I did with mine.


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 Post subject: Re: Antique light bulbs
PostPosted: Jan Wed 11, 2017 9:25 pm 
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BikeNEPA wrote:
I have seen a somewhat limited selection of these in the local Walmart along with the LED versions which I have purchased.
I was just in Walmart and the LED version really looks good even unlit. They are big too. Kinda pricey. I saw that much cheaper and shipping from US on Ebay. 8Watt $8
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 Post subject: Re: Antique light bulbs
PostPosted: Jan Thu 12, 2017 12:09 am 
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Joined: Apr Tue 06, 2010 6:58 pm
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Location: West Bloomfield/Petoskey MI
I just remodeled the radio room and used pendant lights with the LED filament bulbs. I bought them on amazon, directly from china and they were about $6 each for an 8 watt variety. Each filament is a 1 watt led string. Each string runs off of high voltage 80-120v, and the power supply appears to only consist of diodes, a small regulator, resistor and a capacitor. They don't appear to create much if any RF noise and give off considerably more light that the tungsten ones (800 lumens vs 300 iirc).

Ian


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 Post subject: Re: Antique light bulbs
PostPosted: Jan Thu 12, 2017 3:00 am 
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Location: Ohio 45177
I got a bunch of carbon filament loop de loop bulbs from an antique dealer real cheap, still in the cardboard tubes. So I have been using one of them in a lamp for some time and it will probably burn for years if not decades. I tried the magnet near the bulb trick and it sure does make the thing vibrate at a 60 Hz rate, but I got overly frisky with a powerful magnet and the vibration eventually broke the filament. So be aware of that hazard. I tried one of the antique zig zag filament bulbs with an FM portable right next to it. Did detect noise coming from the bulb, but I understand the spectrum of the radiation is not super broadband, they say it peaks at like 60 MHz or so? Nothing there but maybe channel 2 or 3? Would need a spectrum analyzer as I have nothing that tunes there. I am not afraid to use antique bulbs I have duplicates of. Seems some of them make more heat than light.


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