Hi Mike, James I will be the first to admit that I know next to nothing about electronics but reading your correspondences reminds me that a work colleague...
Hi James Ahh Although I have a couple of 1000w MH lamps they dont work. I shall try using 400w MH in a cyclorama (Theatre/Stage) Floodlight as I have a few New...
Hi Phil That was my first thought when I first saw the article so I looked it up. Philips do a lamp at that wattage called the Master MHN SA with a lumen ...
Hi Tom, Producing 3 phase AC is fairly easy using electronics, and this 3 phase technology is starting to appear in electric vehicles such as airport baggage...
Hi All I have recieved the Vintage Pointolite Lamps today 1st being unused 2nd being slightly used and the 3rd being well used I attach two Photos of the...
Hi all Would it be OK to power up my 100w Mercury Lamp on a say Philips BSX90 Choke I have looked up the data for a 100w Mercury Lamp type JH100 or JHF100...
As Bob said- it's all on James H's site- have a look at http://www.lamptech.co.uk/Spec%20Sheets/Pointolite.htm ...the heater is 7V, and the arc is 2A @ 50V DC,...
HI. The post top lanterns with the portcullis design on the side of them are CU PHOSCO P351 CHASE lanterns and they are in westminster area of london. There is...
... BSX90 Choke I have looked up the data for a 100w Mercury Lamp type JH100 or JHF100 lamp (MBF/U) and the data for this lamp is 100 watts 115 volts 1.00...
Thanks Tim - Is the photo of the P351 on your site? I should have noticed where these were as I used to work at the Albert Hall! Are CU Phosco and Concrete...
... Your question's answered here: http://www.cuphosco.co.uk/pages/history.html Although Phosco Limited was originally called Phosware. And the diversification...
Hi Simon/Chris, Cu Phosco also had a few regional manufacturing sites in the 1960s/70s, and one of these was based up here in Cramlington, Northumberland. I...
Hi Mike/Phil/Bob Yes operating the lamp may be fairly easy as I read a 12in 8w Fluorescent Tube operates more or less at the same voltage and current e.g....
Hi Mike/James I actually did try a 70w SON/MH ballast but it got too hot and luckily it had a thermal Switch and cut off I shall operate it on a BSX90 ballast...
HI Chris. The photo of the P351 is not on my site .This light is where you turn of the KENSINGTON ROAD ( A315 ) and this road goes to the Albert hall. I have...
Hi Colin, It maybe that your 70w SON ballast was faulty, as the 70w ballast is a pretty decent match for 100w mercury lamps. I run my Westinghouse 100w lamp...
Hi Tim Is that a Motief on the bowl or is the lamp leaning on it and cause it to burn a hole in the bowl All the Best Colin tluck63312@... wrote: HI Chris....
... Fluorescent Tube operates more or less at the same voltage and current e.g. Pointolite Lamp is 50 volts 2 amp and a 12 Inch Fluorescent Tube operates at 48...
Hi James My Mistake I meant to say 0.18 amps I was thinking about the 200w Japanese Mercury Lamps for 150w SON ballasts as they are 1.8 amps or near enough All...
Hi Davy, Nice display! Are you going to have the brackets painted? I think they look much better painted. In my last order I had a hit or miss guess with the...
Hi Steven, Hmm... all I can remember about Candlemaker Row is how terrible these Urbis ZX-whatevers look on the short steep tilted wall mount brackets. That...
Hi Adam Believe it or not the Candlemaker Row wall brackets have always been short-angled! Originally it was Turtles which lit that road, the West Bow and the...
... Japanese Mercury Lamps for 150w SON ballasts as they are 1.8 amps or near enough ... Ah, so which is it that the Pointolite lamps run at? For a lampholder...
Thanks, Simon and Mike - So Phosco was always a lantern-producing arm, of CU! Interesting about the Hirwaun connection - Maybe that accounts for the lack of...
Hi James Yes the Pointolote runs at 2 amps but the arc voltage is too high for a 150w SON as the pointolote lamp is 50 volts where as a 150w SON operates at...
Thanks Mike - maybe they meant that the Severn Bridge was the first place their own high mast columns were unstalled. Since learning of the longstanding...
And of course Edinburgh, with Phosco top-entries on CU columns, and the P107 post-top/CU column combo. Steven ... first ... of ... Esplanade, ... think) ... ...
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