Archive for December 4th, 2007

Strobe and/or Smoke effects are used in this production

Black lightOil wheelMonster Strobe

 

The height of disco lighting school sophistication in the 70s was the Ultra Violet light, the oil wheel and the strobe. We found this from our annual school disco, provided by a Company in Wallsend known as Impulse who also sold gear and had a recording studio. Naturally, us geeky types tried to emulate this.

 

I got myself a “black light” which could go into a regular lamp socket and took it to Simon Ritter’s Party. I left early (due to too much Lager and Blackcurrant) and found out later that it had exploded after someone called Paul Snaith spat on it.

 

I bought a couple of oil wheels during my school career, and a couple of small projectors to use them with. For my 18th Birthday, my Mum and dad bought me a zodiac effects wheel as well as a Sinclair Black Watch.

 

 

Zodiac wheel (not the one I had, but close)The Sinclair Black WatchXenon tube

Now a strobe works by producing a very short, bright flash of light from a flash-type tube filled with Xenon gas. A high voltage pulse is applied (generally to a third electrode) which ionises the gas and allows a bright pulse of energy to be discharged through the tube.

Creative Commons: http://en.wikipedia.org/wiki/Image:Xenon-flash.gif

(Click the box to fire the Xenon tube) 

My first strobe, however, wasn’t as sophisticated as this. It was advertised as a Pocket Strobe in the back of Practical Electronics but when it turned up, it was a torch with a small circuit to make it flash. Needless to say, as it used a filament lamp, the effect of temporal aliasing was practically non-existent.

My next attempt, was mechanical- an LP with a hole in, fitted in front of a photo-flood and powered by a gramophone turntable motor. This was OK as an effect but tended to melt, or go flying off the spindle and shearing across the forestage scratching the school piano. I did have a number of alternative effects though, including a home made colour wheel. (No precision of colour choice but very freaky).

Furse Patt 23 Copy, known as the SPR (Small Profile). I modified one of these to be a strobe spotIn due course, I bought a Strobe kit, the “Hy-Light” from an outfit known as the Service Trading Company of Little Newport Street behind the Empire, Leicester Square. This wasn’t particularly bright (4 Joules, or about 100 watts at full speed (Watts = Joules/Second) but was a real strobe and it was enhanced with the addition of extra capacitors, generally salvaged from old florry light fittings. The electronics were fitted into an old tape recorder case and the flash tube was in an old floodlight, eventually upgraded to an old Furse Spotlight which made it a strobe spot and much brighter.

Once I was actually earning, I was working in London and found myself in Little Newport Street. I bought myself a “Super HyLight” kit complete with case, this was 16 Joules and the dog’s bollocks of strobes at the time. I was going to see Lulu in The Sound of Music at the Victoria Palace that night and went back to my hotel after the interval in order to carry on with the Soldering Iron. (I was staying at the Grosvenor Victoria which was very handy.)

The Kodak CarouselThe Rank Aldis Tutor II (although min was blue)I also bought some beefier slide projectors for oil wheel use, first an Aldis Tutor (1000W) then a Rank Aldis Tutor II (250W, but brighter). The Tutor II was the workhorse effects projector of the 80s, whilst the Kodak Carousel was the workhourse AV slide projector (although I never owned a KC).

The Carousel was omnipresent in showbiz for thirty years but it was quietly manufacture discontinued in 2004, having been killed off by digital projectors. It is a bit like Gary Glitter though- forgotten, but not gone.

Strobes are cool, how else can you see this?

Creative Commons http://en.wikipedia.org/wiki/Image:Schuss_gluehbirne.jpg

I’ve been ROAR!ed!

Beaman (of Bazaar fame) has given me a ROAR! award for powerful words. Cheers, I’m chuffed. I’d like to point out, though, that I’m not an “architecturally inclined Yorkshireman”, I’m a stranger in a strange land, trouble at mill, eckythump, on Ilkley moor Bah’Tat, it’ll be reet tha nose…

I’m actually a stranger from Geordieland Howay the lads, divent dunchus, Hinny, pet, whey’s buggered the bandit? gizasniffoyafrontbum etc.

What makes a good blog? I cannot do better than repeat the blog 101 I saw the other day, namely;

  1. err…
  2. I can’t remember
  3. where I saw it!!

OK, I’ll make my own three up

  1. Be authoritative- don’t write about what you don’t understand
  2. Be opinionated- convey your own take on it
  3. Be impassioned- say it because you care for it

There is also number four- be prepared to break the first three rules!

My first inclination was to pass this on to Blogpowerers but I’m going to pass this on to five non-blogpower bloggers as this will inevitably get given to many of the BP community anyway.

The first goes to Womble on Tour, who says what he thinks and despite being new on the block, has just reached his 100th post.

The second goes to Chip Dale, who is living the dream, although he seems to be going through a period of blogger soul-searching at the moment.

The third goes to Fabian Tassano who is on a pre-christmas break but when blogging has a brain the size of a planet.

The fourth goes to Brian Micklethwait, someone who I regret not reading every time I rediscover his blog or see a post of his on Samizdata. His style is much less in your face than may Libertarians but he can come out with some real wize words.

My final victim awardee is Scott Adams (The Dilbert Bloke) for his ever controversial, ever entertaining blog (although the Bastard Operator from Hell came close).

roarlarge.jpg

UPDATE: The Blogger 101 I mentioned is over at Nobody Important…