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OSRAM FILTA-LITE mushroom bulb

OSRAM FILTA-LITE mushroom bulb

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Found this in the loft. OSRAM "FILTA-LITE" 60w 240 volts 8YK and made in England. It doesn't work unfortunately

20130616_131630.jpg 20130807_103334.jpg 20130807_103055.jpg 20130807_102326.jpg

Light Information

Light Information

Manufacturer:OSRAM
Model Reference:8YK
Lamp
Lamp Type:Incandescent
Shape/Finish:Mushroom
Electrical
Wattage:60 watts
Voltage:240 volts
Physical/Production
Factory Location:England

File information

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Filename:20130807_102326.jpg
Album name:Flurofan96 / Incandescent lighting & bulbs
Keywords:Lamps
File Size:218 KB
Date added:Jun 15, 2014
Dimensions:2050 x 1153 pixels
Displayed:301 times
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-95001
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Lampman
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Jun 16, 2014 at 11:06 AM Author: Lampman
Nice, shame it doesn't work.
Beta 5
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Nov 10, 2014 at 12:50 AM Author: Beta 5
I have a couple of mushroom bulbs, they are GE ones that are 40w
Along with them, I also got a 10w 827 2D lamp, and a bell 25w GLS, amongst other lamps

Thorn Beta 5 35W SOX 1965 - 2008. Top entry/Side entry

Flurofan96
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Nov 10, 2014 at 04:10 PM Author: Flurofan96
Wow that's some real treasures you have with you

Btw I've received 20 opal bc candle bulbs for my chandelier from Amazon and of course Amazon said they're were EVEREADY make, but today I find its the dreadful POLAROID!!!!!!!!!

I will give LEDisease a taste of my shoe

Beta 5
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Nov 10, 2014 at 04:15 PM Author: Beta 5
Oh dear, not the dreaded polaroid lamps

Thorn Beta 5 35W SOX 1965 - 2008. Top entry/Side entry

Flurofan96
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Nov 10, 2014 at 04:17 PM Author: Flurofan96
I know I've been snookered, dammit all, AMAZON said it was by EVEREADY (and I've seen EVEREADY make opal candle bulbs)

I'll post a pic of what I've recieved of the Polaroids

I will give LEDisease a taste of my shoe

Flurofan96
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Dec 31, 2014 at 09:11 AM Author: Flurofan96
@Andy: check this one out can you tell me anything about this one I have I don't know anything about it as I've just found it in the loft of our house

I will give LEDisease a taste of my shoe

rjluna2
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May 27, 2015 at 07:17 AM Author: rjluna2
Sometimes you find good gems, but sadly it is EOL Peter

Pretty, please no more Chinese failure.

Flurofan96
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May 27, 2015 at 07:25 AM Author: Flurofan96
That's right. At least it's not smashed which I'm very glad of. Had a dream of this bulb being accidently smashed

I will give LEDisease a taste of my shoe

dor123
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May 27, 2015 at 07:40 AM Author: dor123
I know only Osram Bellalux and Superlux Krypton, as Mushroom incandescent lamps of Osram. I don't know about FILTA-LITE 8YK.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

Keiron
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Apr 27, 2016 at 04:42 PM Author: Keiron
I bought a job lot of these
http://www.lighting-gallery.net/gallery/displayimage.php?pos=-116556.

Mazda lamps stay brighter longer :-)

Flurofan96
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Apr 27, 2016 at 05:06 PM Author: Flurofan96
More of these? Great on you

I'd wish my example was working, was kinda gutted to find out that it didn't light

I will give LEDisease a taste of my shoe

Keiron
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Apr 27, 2016 at 05:12 PM Author: Keiron
I seem to be getting a few repeats in my collection but I never turn down old lamps.

Mazda lamps stay brighter longer :-)

Flurofan96
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Apr 27, 2016 at 05:24 PM Author: Flurofan96
Grab as many old incandescents so you can protect them from the bulb ban and discontinuation activity.

I was shown a video where in Vienna a person in a forklift crushed a mass bulb of incandescents that many people poured out on the street to be crushed in response of the ban!

I will give LEDisease a taste of my shoe

Keiron
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Apr 27, 2016 at 05:31 PM Author: Keiron
That's awful, they could have donated them to people on this site, sadly incandescents are becoming more rare & harder to find.

Mazda lamps stay brighter longer :-)

Flurofan96
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Apr 27, 2016 at 06:00 PM Author: Flurofan96
Thats just people being badly influenced by the stupid ban, brainwashing them that incandescents are illegal and harmful to the environment

They could have just donated it to us here on this site or list on eBay. At least we have a hefty amount of sellers who are good enough to list discontinued bulbs on eBay

And its so comforting that there are other people like you who can store a lot of lanterns/bulbs and gear in good care away from the menace of upgrades and dumpsites

I will give LEDisease a taste of my shoe

Keiron
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Apr 27, 2016 at 06:16 PM Author: Keiron
Some sellers on eBay try charging silly prices because of the ban, they end up endlessly re listing them, gladly though there are some sellers with reasonable prices. I bought some last week & half the bulbs were in wrong boxes, I got offered a full refund including postage but declined as the seller was nice about it & genuinely didn't realise, I only paid a small price & was still happy with what I'd got.

Mazda lamps stay brighter longer :-)

Flurofan96
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Apr 28, 2016 at 03:39 AM Author: Flurofan96
Most sellers do charge reasonable prices. I got my 12 bulb lot for a counter offer of £8.50 (original price was £9.99) but I wanted these GE opal 40W candle bulbs because I have a chandelier that takes them and using CFLS would just ruin the look (although I admit there is one CFL and one LED candle bulbs, the rest are clear GE 40W incandescents in use)

Mind you, I'd better try saving money so I can try to upgrade my violin (they cost an awful lot for a really good one) had my current full size violin since 2009

I will give LEDisease a taste of my shoe

Keiron
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Apr 28, 2016 at 03:46 AM Author: Keiron
I keep trying to save money but then I see more lamps for sale :-/
I use the halogen lamps at home, better than cfl & led & they are widely available.

Mazda lamps stay brighter longer :-)

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Apr 28, 2016 at 05:58 AM Author: Flurofan96
They're Fairway halogens aren't they?

If you're interested GE makes eco halogen retrofit bulbs

And yes saving money whilst under a lamp collecting fever is never easy

I will give LEDisease a taste of my shoe

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Apr 28, 2016 at 10:37 AM Author: Keiron
I think the last batch of halogens I bought were eveready, they seem to last about 6 months & they get a lot of use, day & night. At least they are not violent when eol like some of the cheap incandescents.

Mazda lamps stay brighter longer :-)

Flurofan96
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Apr 28, 2016 at 04:30 PM Author: Flurofan96
If you look through my incandescent album and see some opal candle bulbs made by Polaroid, they didn't explode but they were always tripping the circuit breaker like nobody business and they would only last less or roughly 1 month.

See the story there http://www.lighting-gallery.net/gallery/displayimage.php?pos=-99827

and yes the bulbs literally wrecked our dimmer switch, rendering it 100% useless

I will give LEDisease a taste of my shoe

Keiron
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Apr 28, 2016 at 04:49 PM Author: Keiron
Status lamps do the same, trip circuit breaker & go with a loud bang, I've had one explode!

Mazda lamps stay brighter longer :-)

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Apr 28, 2016 at 04:52 PM Author: Flurofan96
Thats no good I hope you were Ok and other if any, around the place where the bulb exploded

I will give LEDisease a taste of my shoe

Keiron
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Apr 28, 2016 at 05:05 PM Author: Keiron
Luckily there wasn't much stuff in the room as it was just after we moved into the place. I quickly replaced all the status lamps.

Mazda lamps stay brighter longer :-)

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Apr 28, 2016 at 05:19 PM Author: Flurofan96
Excellent choice of decommissioning the cheap incandescents

I've got a 150W status GLS lamp which I have not used and now after your story, I'd hate to see what would happen to a 150W version of a Status if it goes EOL do you think I should not use it

I will give LEDisease a taste of my shoe

Keiron
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Apr 28, 2016 at 05:24 PM Author: Keiron
Fingers crossed the status 150 watt GLS ones have died calmly, I have them in use in the cellar, it's the candle & golfball types that I've found violent.

Mazda lamps stay brighter longer :-)

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Apr 28, 2016 at 05:30 PM Author: Flurofan96
Maybe the large envelope size dissipates the heat and also when it pops or arcs at EOL, there isn't a such massive pressure buildup that causes the explosion like candle and golf ball types because of smaller envelope

My cousin had a Status halogen and GLS bulb at 100W and safe to say that they both died calmly as he said nothing about them literally exploding which is good. So looks like we avoid the candle and golfball types from Status

I will give LEDisease a taste of my shoe

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Apr 28, 2016 at 05:32 PM Author: Keiron
I'll let you know when the 150 watt goes EOL & how it's gone.

Mazda lamps stay brighter longer :-)

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Apr 28, 2016 at 05:35 PM Author: Flurofan96
OK thank you

Btw on 150W bulbs, my Crompton one, installed on Feb 2015 is still working to this day with slight blackening of course http://www.lighting-gallery.net/gallery/displayimage.php?pos=-104411

I will give LEDisease a taste of my shoe

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May 24, 2016 at 08:03 PM Author: Globe Collector
"Had a dream of this bulb being accidently smashed".....When I was a little kid, a Scottish neighbor used these Filta-Lites, and I was given them as they went E.O.L. Some of them I still have, but one did get broken...it smashed against my forhead when I fell of a 1.5m high retaining wall whilst holding it. I still have the scar on my hairline!

"YK" decodes to October 1967, which seems about correct for this brass based version and from my recollections. From the East Lane Wembely plant.

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

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May 24, 2016 at 08:16 PM Author: Keiron
When my parents moved into a house back in 1991 100 watt filtalites were fitted through out (probably been there since the house was built in the late 70's), I'm glad I've since managed to get some for my collection

Mazda lamps stay brighter longer :-)

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May 25, 2016 at 04:02 AM Author: Flurofan96
Oh dear, Globe Collector thats really painful!!! Very sorry to hear you still got the scar from what happened long ago!!!!

Thank you so much for the date code btw for almost 2 years I've been wondering how old it was and I estimated from the brass cap that it could be 60s or 70s. October 1967 soon to be half a century old in 2017!!!

One question about these filtalites? Did they have a short lifespan compared to other bulbs as you've mentioned you've been given EOL ones from your Scottish neighbour back in your childhood?

Keiron, I've yet to get a 100W version of the filtalites good on you to get some into your collection

I will give LEDisease a taste of my shoe

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May 25, 2016 at 06:12 AM Author: Globe Collector
What I do recall about these....from what I remember inside my Scottish neighbor's house...these were BRIGHT and WHITE.

Naturally, as a kid, I thought these type K's were quintessentially British, (Made in England and used by Scots), but in time I got some Dutch Philips Argenta-K's from the Weert plant so I then knew these were more widely spread across Europe than just Britain but these Filta-Lites are, to me, still in my mind the most British of British lamps.....only thing to make them more British would be to be branded "Ismay", or "BELL".

These G.E.C. Filta-Lites had a very unusual coating made by pyrolysing TiCl4 vapour sprayed into the hot bulb, where it thermally reacted with oxygen to make the TiO2 coating and HCl gas....this gave these Filta-Lites a wishy washy "buttermilk" sort of look I did not fancy much, I liked the Philips Argenta-K's with their much thicker, coarser coating of TiO2 applied electrostatically.

Still later in my life I found out about how gasses of greater atomic mass (like Krypton instead of Argon) retard filament evaporation and allow the filament to either continue to be run at 2700K, but last much longer than 1000 hours, or get "cranked up" to 2850K and come back to the 1000 hour mark...but give a lot whiter, brighter light. I sort of seemed to associate these type K bulbs with Krypton-Nitrogen fill and higher filament temperatures. Then I found out about Imre Brody, the bloke at Tungsram, where the first type-K's were made in 1936 because he had gotten a cryo-fractination column to function and thus had access to abundant Krypton for the first time in history ...so he and Tungsram were the real inventors of the type K, and the likes of Thorn, G.E.C. and Philips were just "Johnny come lately" immitators.

Now, although all Tungsram (and Hungarian G.E.) type K's are Krypton filled, some of the others, such as the Argenta-K, Neta-Bulb and Filta-Like may not necessarily be....but those Filta-Lites at my Scottish neighbors (and they had a castle in Scotland that must have been full of them) were so bright and white in comparison to our mundane argon filled Aussie A-60s that I summized that they must have been Krypton filled, if they wern't she would have been replacing them all the time.

Other, very learnered members of this site have conjectured that not all type-K's are krypton filled...so I need to build a small "Tesla Coil" so I can zap my old Filta-Lites. Argenta-K's and much more recently acquired Neta-Bulbs and get the spectrum of the excited gas and solve this riddle once and for all.

Oh, the base of this is quite unique, it is a typical British "Low Collar" B22d base from British Presscaps Ltd., in Chesterfield, the lamp itself is from East Lane Wenbely.

Busting one of these with my head I think has confirmed me as a die-hard, life-long lamp collector, and I have the mark to prove it! I must admit, when I did it, "Claret" went everywhere, but my mother, a nursing sister at the hospital was completely unfazed, she saw that sort of stuff every day!

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

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May 26, 2016 at 04:41 PM Author: Flurofan96
From your story, it makes me want to get a working example of the Filtalite, but I got myself a GE krypton bulb in which you say it has actual Krypton gas filling rather than Argon in Argenta and Neta bulbs. I did take a pic but felt like a pointless thing for me to upload my own as a couple of members posted their ones up before me. Nevertheless it is in my collection.

I can see why the Filtalites had short lifespan (according to your EOL collection + my EOL one!) its because due to use of Krypton, it was possible to crank up the colour temperature to 2850K whilst keeping to the 1000hr lifespan as you described them being bright and whiter than the usual argon filled A60 bulbs. And thanks for another interesting story of how Tungsram invented the Type K mushroom bulb. Now I know Thorn were the inventors of the 2D compact fluoresant and Philips the inventor of the SL self ballasted CFL as retrofit for incandescents!!

When you say about the buttermilk texture from the TiC4 + O2 reaction process, is it identical/similar to the texture of fumed silica pearl lamps???? because with Type K mushroom lamps, I've only seen those in real life with the TiO2 coating and on this site a HF acid etch coated one and finally the ones that have 3/4 in TiO2 coating and 1/4 with HF acid coating to have a reflector lamp property .

So the collared BC base is indeed British then I guess manufacturers abroad bought the machinery from British Presscaps LTD and hence why my cheap Polaroid bulbs and also TESCO branded bulb and others, have this collared BC cap. My Hungarian GE incandescents do not have the collared BC base but their CFLS do have them!!

Oh and good job your mother did a great job healing you after this nasty accident!!

I will give LEDisease a taste of my shoe

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May 27, 2016 at 12:28 AM Author: Globe Collector
British Presscaps made this low collar B22d-2 cap, the Viterite Works in Middelburg, (Philips), made the much more common high collar B22d-2 cap. The dies at each plant may have been changed over time too, but I`m referring to 1965-85. There may have been other capping plants contributing too...

The fumed silica "pearl" A-60 are made by some sort of contact vaporizing/electrostatic process which vaporizes SiO2, the stuff melts at 1800*C so imagine what it takes to vaporize it! Some sort of sudden cooling makes the very fine powder which simply sticks to the bulb due to "surface effects" and the virtue of its HUGE surface area because it is so very fine.
Look at this video , go to 2.22min, you will se the electrostatic coating process, then they show a hopper of the fine silica, suggesting it is made externally to the plant and just brought/bought in from external suppliers...so the vaporizing process is done externally and the electrostatic coating process is what you see in the video. This was filmed inside the Drummondville plant. You can see the same process happening at the Oakville plant at 2.55 in this video.

The HF etching process, which I aesthetically prefer the end result of, was deemed to dangerous considering how conc, HF can cause bone necrosis...you can se it being used at 5.58 in this video at the Harworth Plant.

Dual Pearlled lamps, i.e. both HF etched AND silica fumed are extremely rare here in Australia and as far as I can tell, were never made here. Our plant transitioned from HF etching to silica fuming, very rapidly in 1985 or so. I think I may have just one dual pearlled lamp in all my 12,000 lamps!


As for my childhood neighbor's Filta-Lites reaching E.O.L. rapidly...this was not the case, I just kept collecting them from her over about a 15 year period. As to whether or not Filta-Lites and Neta-Bulbs are filled with an Argon-Nitrogen Mix or Krypton-Nitrogen mix, I have still not gotten conclusively to the bottom of it, your past experience suggests one thing, things that people tell you suggest the opposite...SOMETIMES, you just ignore everything because it is too contradictory and go and find out from FIRST PRINCILES...i.e. measure it yourself. Which I will do when I build the H.F., H.V. zapper from an old L.O.P.T. from a TV. In this video in the "Whitte Dame" (Philips} plant in Eindhoven, you see one being used.
Using this with the spectroscope will give the spectral lines of the gas, and thus identify it without destroying the lamp.
There are a few persistent lamp mysteries.....the composition of badging paste, the composition of Viterite and the composition of Wood's Glass.....many argue incessantly over these....unless there are a number of different ways of making them, but everybody thinks that their way is the ONLY way...
To really find out you must collect samples and get them Auger or X-Ray fluorescence tested, or wet test them yourself!

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

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