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Flashing Light Unit

Started by 12thdoctor, May 15, 2009, 09:49 pm

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Teletran

May 26, 2006, 01:08 am #60 Last Edit: Feb 23, 2010, 10:00 am by scarfwearer
Just for the record my username is derived from transformers
(http://img194.imageshack.us/img194/1360/omni02g.jpg)

davidpk212

Jun 13, 2006, 04:41 pm #61 Last Edit: Feb 23, 2010, 10:00 am by scarfwearer
I was thinking about his enigma the other day. How about related the number of decibels being played through the speakers to the voltage that is going through the lamp.

So, as the TARDIS' vworp (as in one grind) got louder, the bulb would get brighter, and fade out, etc. You'd need to make it so the decibel>voltage eqution changed as the entire sound effect itself got louder if you planed to use it for video (otherwise the light would not be seen at the start of materialiastion, then suddenly fade in very quickly...) but, using a bit of computer jiggery-pokery, I reckon it could be done...

Sorvan

Jun 13, 2006, 06:55 pm #62 Last Edit: Feb 23, 2010, 10:00 am by scarfwearer
Quote from: davidpk212 board=build thread=1147233461 post=1150216862using a bit of computer jiggery-pokery...


Is that a technical term?

Colin (who couldn't resist)

robm

Nov 11, 2007, 08:44 pm #63 Last Edit: Feb 23, 2010, 10:01 am by scarfwearer
[

Also - has anyone rigged up a sound system for the demat. sound - if so - any advice about speaker position and where to aim it?  I thought about placing one facing down into the box, but the volume needed to hear it from outside would deafen anyone inside...

Thanks muchly - glad to have found this group!!  :D[/quote]

Um... for what it's worth, inside my build, which is fiberglass, i have a Thick wooden Block with a Coffee Table on it, i then purchased a set of Plastic Shelves from Woolworths which are 4 high, i then went and bought an Amp ( Rotel RA - 820 ) and a dedicated CD Player ( Technics SLPG490 ) and a Pair of Mission 720's Speakers ( i think ) and basically placed the Amp on the Second shelf, CD Player above and Speakers on the top shelf, i have found the speakers on the top shelf give the illusion that the sound is kinda coming from the top and because the speakers are above head height, so thus you are not directly in front of them but for your hearings sake, keep a pair of HeadMuffs in there  ;) i selected these instruments purely for clarity of sound and ensuring the CD Player can play CDR's.
    I Hope this helps
"Geronimo"

unclelew

Aug 09, 2009, 10:14 pm #64 Last Edit: Feb 23, 2010, 10:01 am by scarfwearer
That's funny!  I always get asked to turn down my Tardis at events!  I have two powered JBL  PA speakers running half way up. (500 watts total) I have a small ipod shuffle with a output cord running to a small 4 channel mixer (non power).
I drilled a small hole in the right side wall to run the cord thru to the ipod, so, when given a cue, I can press the play button and watch people FREAK OUT!!!!  The TARDIS shakes and vibrates!  preaty cool.
It's always fun to watch...and the way I see it...when the vortex opens, the sounds must be quite loud and very awesome! (that's what I tell'em anyway!)

steve

Dec 09, 2009, 02:43 am #65 Last Edit: Feb 23, 2010, 10:01 am by scarfwearer
Hello Moonpieone.
Your tadis looks very nice. I want to build one my self can you help me in locating the instructions like the ones you have?
Thank you.
Steve.

Theta Sigma

Feb 23, 2010, 11:10 am #66 Last Edit: Feb 23, 2010, 11:12 am by Theta Sigma
Quote from: DarthMoose74 on Feb 22, 2010, 03:56 pm
There are a variety of ways to do your lamp on top, blinking is easy but to get the right amount of fade on and off how do you do it?


Look at this thread link below on the forum.  It details plans on how I built an LED flasher unit that will achieve the fade effect you are seeking.  At some point, I will be working on a 12V halogen version as well.

http://tardisbuilders.com/index.php?topic=616.15
"I just put 1.795372 & 2.204628 together." - 4th Doctor

DarthMoose74

YUP! This is the kind of info I was looking for. Thanks so much!  Is there a video anywhere of that cooper flasher button for a regular light bulb?

galacticprobe

Feb 25, 2010, 02:16 am #68 Last Edit: Feb 25, 2010, 02:20 am by galacticprobe
Quote from: DarthMoose74 on Feb 23, 2010, 04:20 am

PS My friend has a KITT car :D


There used to be a KITT living about five blocks from me a few years ago - 3rd Season single monitor version. Pulled up next to it at a traffic light one day and saw Bugs Bunny playing on the monitor. It looked really cool. I think the guy moved, though; I havent' seen it in at least four years or so. (The closest I've come to that is the scanner light I installed in my '86 S-10 blazer.)

BTW, I forgot to mention: NICE DROIDS!

Dino
(Sorry for drifting off topic, but you know how these Type-40s are to steer!)
"What's wrong with being childish?! I like being childish." -3rd Doctor, "Terror of the Autons"

Theta Sigma

May 31, 2010, 02:02 pm #69 Last Edit: May 31, 2010, 04:41 pm by Theta Sigma
Links to comparison vids, taken at night, of the Luxeon LED lamp flasher and a 12V halogen bulb flasher.  Garden lantern and fresnel comparison videos.  See video descriptions for more details.


















12V Halogen 100W

Fresnel

Gardman

4 Luxeon LEDs

Fresnel

Gardman
"I just put 1.795372 & 2.204628 together." - 4th Doctor

12thdoctor

It looks just as good in the gardman as it did with the fresnel...

Hopefully I'll be starting a new (better paying) job within the next six months, which should hopefully allow me to start construction within a year.

wayne venomous

Aug 31, 2010, 10:24 am #71 Last Edit: Aug 31, 2010, 10:27 am by wayne venomous
Just been reading through this thread - as it started way before I joined I'll add a couple of ideas which I'm going to be using on my Daughter's half size TARDIS. I'm making the flasher unit a little simpler as I'm stuck for time and it's very much a tight budget build.

Power supply for 12 volt:
I'm using a camping inverter i.e. it's a transformer that converts 240 volt AC mains to 12 volt DC so you can run 12 volt cool boxes etc with a mains hook-up (maximum 7 amps). They're normally less than £10 from camping and caravan supplies shops.

Sound recorder:
I know mentioned on the video that the digital sound recorder was around $35 but a personal CD player can be bought for around £8 from somewhere like Asda (UK Wal Mart equivalent). As it happens I've got loads of old car stereos lying around (I rewire classic cars for a living) so I was planning to use one of those for the sound effects.

Sound to light converter:
Have you ever tried connecting an LED directly to the sound output of a CD player or similar? Crank up the sound a little and you'll find the LED actually flashes in time to the sound! The power output is just enough to power one LED and probably wouldn't be enough to power lots of LEDs but that's easily sorted, just put a light dependant resistor on the end of that LED and it will control another circuit that you can connect lots of LEDs to.

I'll be putting this up on my build thread when I'm at that stage. I'm still putting the wooden exterior together at the moment.

superrichi1a

Quote from: wayne venomous on Aug 31, 2010, 10:24 am
Just been reading through this thread - as it started way before I joined I'll add a couple of ideas which I'm going to be using on my Daughter's half size TARDIS. I'm making the flasher unit a little simpler as I'm stuck for time and it's very much a tight budget build.

Power supply for 12 volt:
I'm using a camping inverter i.e. it's a transformer that converts 240 volt AC mains to 12 volt DC so you can run 12 volt cool boxes etc with a mains hook-up (maximum 7 amps). They're normally less than £10 from camping and caravan supplies shops.

Sound recorder:
I know mentioned on the video that the digital sound recorder was around $35 but a personal CD player can be bought for around £8 from somewhere like Asda (UK Wal Mart equivalent). As it happens I've got loads of old car stereos lying around (I rewire classic cars for a living) so I was planning to use one of those for the sound effects.

Sound to light converter:
Have you ever tried connecting an LED directly to the sound output of a CD player or similar? Crank up the sound a little and you'll find the LED actually flashes in time to the sound! The power output is just enough to power one LED and probably wouldn't be enough to power lots of LEDs but that's easily sorted, just put a light dependant resistor on the end of that LED and it will control another circuit that you can connect lots of LEDs to.

I'll be putting this up on my build thread when I'm at that stage. I'm still putting the wooden exterior together at the moment.



Wayne, I'm sorry to say this, but you are a genius! ;D
Isn't it how ironic that we have to think of solutions out of the box, in order to build our boxes a lot of the time?

wayne venomous

Quote from: superrichi1a on Aug 31, 2010, 09:12 pm
Wayne, I'm sorry to say this, but you are a genius! ;D


Nah, I'm just used to being skint and using whatever I've got lying around. Without the convenience of a massive budget it's amazing what you can come up with.

Poundland and 99p stores are my mainstay!  ;)

exleo

ooooo even many a professional film or television prop has it's roots set deep inside a Poundland or 99p shop....all hail to the great bargain basement ;D