Search found 59 matches

by Zelandeth
Sun Aug 12, 2018 2:43 pm
Forum: Luminaires
Topic: Help me Identify a Fitting from my Past...
Replies: 2
Views: 88

Re: Help me Identify a Fitting from my Past...

It really did just look like a normal fluorescent bulkhead when unlit. Pretty sure it was Thorn based on the very square edged profile - but again, last time I saw it was in 1999, so my memory could be hazy!

If I could figure out what body it was based around, wouldn't be impossible to build myself.
by Zelandeth
Thu Aug 02, 2018 9:49 am
Forum: Luminaires
Topic: Help me Identify a Fitting from my Past...
Replies: 2
Views: 88

Help me Identify a Fitting from my Past...

Because it's kind of one of my Holy Grail level "to find" items. ...vehicularly speaking a Merc T1 van was, and I've just pulled that off, so let's see if luck is on my side! Was outside the front door to my primary school (maybe even still is - but I ain't going to go wandering around the...
by Zelandeth
Fri Jul 27, 2018 5:34 pm
Forum: Control Gear
Topic: Ballast for 14W t12 tube
Replies: 12
Views: 603

Re: Ballast for 14W t12 tube

I have to admit that when I went to run the couple of 14W tubes I've got here I just used a CFL ballast with the same wattage. Overall circuit power seemed to be pretty close and brightness looked in line with what I'd expect. Worked well enough for getting photos, spectra etc anyway even if it mayb...
by Zelandeth
Thu Oct 13, 2016 2:00 pm
Forum: Lamps
Topic: Osram 125w HQL Super Deluxe 'Golden Eggs' On Amazon
Replies: 1
Views: 1586

Re: Osram 125w HQL Super Deluxe 'Golden Eggs' On Amazon

Just beware that the listing does state that this is a blended lamp - it isn't!
by Zelandeth
Tue Jul 19, 2016 10:33 pm
Forum: Street Lighting
Topic: Great Way To Clean A Streetlight!
Replies: 2
Views: 1338

Re: Great Way To Clean A Streetlight!

I've found that the Cillit Bang grease remover to be pretty effective. It shifted the greasy sooty residue from my 60s era Coughtrie SFB16s a treat anyway. Can't remember the exact wording on the bottle, but I think it's grease and shine or something like that. Works nicely in the engine bay in the ...
by Zelandeth
Fri Apr 01, 2016 10:38 pm
Forum: Control Gear
Topic: EOL Tubes On Thermal Starters?
Replies: 3
Views: 2659

Re: EOL Tubes On Thermal Starters?

Pretty sure we had some 5' 80W tubes on thermal starters in my first primary school. The usual behaviour we saw there was for them to dim right down to just a faint argon pirple glow that would get progressively dimmer over a few days until then finally went right out. Then they would blink once eve...
by Zelandeth
Tue Jan 26, 2016 9:37 pm
Forum: Lamps
Topic: The New Super Effecient Incandescent?
Replies: 3
Views: 2045

Re: The New Super Effecient Incandescent?

Be interesting to see where (if anywhere) this goes. Read it on the BBC and remember thinking their numbers were duff though.

If memory serves Duro-Test did some experimentation with IR reflective incandescent lamps back in the 70s/80s didn't they?
by Zelandeth
Mon Dec 28, 2015 10:53 pm
Forum: Lamps
Topic: Cold Cathode T12 Fluorescents
Replies: 1
Views: 1137

Re: Cold Cathode T12 Fluorescents

Can't say I've ever encountered a T12 cold cathode lamp so not sure.

...curious to see one now though!
by Zelandeth
Sun Oct 11, 2015 9:16 pm
Forum: Control Gear
Topic: Strobing SON...
Replies: 6
Views: 2519

Re: Strobing SON...

Well, went past there again this evening and the lamp is running normally it seems...so whatever fault was causing the madness yesterday has apparently righted itself. Will keep an eye on it and see if I can catch it in the act again.
by Zelandeth
Sun Oct 11, 2015 1:00 pm
Forum: Control Gear
Topic: Strobing SON...
Replies: 6
Views: 2519

Re: Strobing SON...

MK were a big user of mercs back in the day. Streetlighting was almost exclusively mercury, as was a huge chunk of the lighting in the Centre itself. Many downlighters in there still running mercury until last year, most converted to CFL fixtures now though.
by Zelandeth
Sun Oct 11, 2015 12:22 am
Forum: Control Gear
Topic: Strobing SON...
Replies: 6
Views: 2519

Strobing SON...

Really not sure whether this relates to something odd going on with the lamp or the gear... Okay, so this was a new one on me, spotted this evening when I was out walking the dog. Most of our neighbourhood is lit with pretty low columns running SON (I think 70W, might be 150W) in a semi-diffuse poly...
by Zelandeth
Thu Apr 16, 2015 9:56 pm
Forum: Luminaires
Topic: SRS vs Quick Start
Replies: 9
Views: 2526

Re: SRS vs Quick Start

I can certainly do QS no problem, but don't actually have any SRS gear.

Anyone got a spare 4' SRS ballast floating around?
by Zelandeth
Thu Apr 16, 2015 7:42 pm
Forum: Luminaires
Topic: SRS vs Quick Start
Replies: 9
Views: 2526

Re: SRS vs Quick Start

Definitely SRS, if it was QS there would be a separate starting/cathode heating transformer.
by Zelandeth
Thu Mar 19, 2015 9:48 am
Forum: Lamps
Topic: SON/MV compatability
Replies: 6
Views: 1749

Re: SON/MV compatability

I know SON in place of MB lamps isn't unusual, but not sure about the other way! A lot of fittings would have issues due to the UV over time, but at least in the short term would work so long as the specs were reasonably close.

...external ignitor could cause some issues I imagine though!
by Zelandeth
Tue Feb 03, 2015 12:39 pm
Forum: Luminaires
Topic: 2ft SRS
Replies: 5
Views: 1791

Re: 2ft SRS

Just had a rummage through the gallery, and I have indeed got them here. Links below: Overall Fixture lit Twin 40W Gear Single 40W Gear The fixtures and their 4' cousins in situ prior to the demolition of the building. Still reckon that must have been a really modern looking install in 1968!
by Zelandeth
Mon Feb 02, 2015 6:29 am
Forum: Street Lighting
Topic: What the ****??
Replies: 3
Views: 1348

Re: What the ****??

Goodness...guessing it was a bit windy then! Can honestly say I've never seen a column flexing by that much before, even up in Aberdeenshire where it can get plenty rough at times! It is a bit unnerving to be honest, you have to wonder how long that can go on before metal fatigue would start to be a...
by Zelandeth
Sun Feb 01, 2015 11:57 pm
Forum: Control Gear
Topic: Failed Thron ASQ50
Replies: 4
Views: 1839

Re: Failed Thron ASQ50

Forgot about this thread...sorry! Replacing the cap with a 4.7uF I had laying around restored normal operation I am pleased to report. Sadly was only a few days before we moved out..so no idea if the fittings are still there - I did leave a note with my details in the gear tray! ...the 50W Thorn DLN...
by Zelandeth
Sun Feb 01, 2015 11:30 pm
Forum: Luminaires
Topic: 2ft SRS
Replies: 5
Views: 1791

Re: 2ft SRS

They do exist. I've got a couple of 2' 40W Quickstart Atlas made fixtures here. No reason to believe that 20W ones wouldn't have existed too.

Think I have photos of the fitting in the gallery...will have a check soon and put it up if not.
by Zelandeth
Sun Feb 01, 2015 10:21 pm
Forum: Lamps
Topic: MBF v PL-C, what would you go with?
Replies: 11
Views: 2750

Re: MBF v PL-C, what would you go with?

In the real world, I'd probably go with the PL. Electricity prices are silly enough these days, that the saving there is hard to deny. Plus PL lamps if from a decent brand should last pretty well in this sort of application. They generally seem to handle the cold reasonably well once they're warmed ...
by Zelandeth
Sun Feb 01, 2015 10:12 pm
Forum: Lamps
Topic: What Colour is Northlight?
Replies: 5
Views: 1533

Re: What Colour is Northlight?

Well I'll try to get a comparison photo once I've got both AD and Northlight tubes here. Think I did see something about Activia tubes somewhere when I was looking around (sorry, can't remember where though!), but they were only in T8, which isn't any use for me here as the fittings are Quickstart, ...
by Zelandeth
Sun Feb 01, 2015 9:16 pm
Forum: Lamps
Topic: What Colour is Northlight?
Replies: 5
Views: 1533

Re: What Colour is Northlight?

Thanks for that.

Have just been offered some GEC 40W T12/AD tubes, but I may well pick up some Northlight tubes as well while they're around...nice to have a gap in the collection filled anyway!
by Zelandeth
Sun Feb 01, 2015 8:00 pm
Forum: Lamps
Topic: What Colour is Northlight?
Replies: 5
Views: 1533

What Colour is Northlight?

Quick question... My "Office" is in a room with no windows, as such I'm generally aiming for daylight simulation in there. Some 6500K LEDs over the desk providing light there, but I'm considering using one of the Atlas triple 40W 4' fixtures I've got to provide some more general lighting i...
by Zelandeth
Sun Feb 01, 2015 7:03 pm
Forum: Lamps
Topic: LED filament lamps?
Replies: 3
Views: 1162

Re: LED filament lamps?

They are interesting things. Grabbed one of the 4W examples from B&Q a couple of weeks back and have to admit so far to being surprisingly impressed by it. Colour is nice, it doesn't flicker at all and seems to run absolutely stone cold even after running for hours, which tends to suggest good t...
by Zelandeth
Sun Jan 04, 2015 2:22 pm
Forum: Lamps
Topic: How to change an XBO by Osram
Replies: 11
Views: 2946

Re: How to change an XBO by Osram

I'm not one for believing the safety hype surrounding many things, but have seen first hand the damage these things can do, so agree full body protection is a must. As far as I know, there are still bits of quartz embedded in the floor and ceiling of that room! Basically I'd treat one as though it w...
by Zelandeth
Sat Nov 22, 2014 1:56 am
Forum: Lamps
Topic: ALDI LED "Pear" 10 watt bulb
Replies: 11
Views: 3458

Re: ALDI LED "Pear" 10 watt bulb

Still keeping an eye out in our Aldi. Haven't had any lamps in at all when I've been in so far, though they have had things such as arc welders and petrol pressure washers. Have to admit to wishing I had £200 to throw away just to grab one of those to do a teardown on to see how much of a piece of r...

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