» MAKE: NOISE — Discuss this article

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• Strobe pictures are always interesting
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  Mike (My friend) made a funky mechanical strobe using a disposable camera, he bought some small parts of camera from Electronic Parts Supplier. We got a really good shot, especially picture of a soap bubble as it pops.

  Posted by Mitch Johnson on April 19, 2011 at 02:50:37 Pacific Time

• schematic question
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  I'm trying to understand the input block. What is the purpose of R22? R1 biases the microphone high, C1 is DC blocking capacitor, R2 and R3 center op amp voltage at Vcc/2; why is R22 necessary, though.
  
  Also, since I'm mostly interested in very sharp trigger sounds, would it be useful to have a smaller C1 or R2/R3 to move the high pass cutoff frequency higher?

  Posted by jinschoi on December 19, 2008 at 04:39:57 Pacific Time

• Schematic for Flash Controller
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  First off, Thank you for the cool project! I'm building the flash controller from the schematic provided on the web site. Question: how much of the schematic includes the disposable camera (if any)? Should the connection between the 1/4" jack and the 2.5mm jack should be a cable? Also: Are all the (earth grounds) connected to the negetive of the battery or just connected together and isolated?

  Posted by pwolpert on August 17, 2008 at 13:48:07 Pacific Time

• Points of contact on throw-away camera
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  I have a one time use camera made by another company. I don't know exactly to where I have to solder the wires. Is it good enough to solder the wires to the too points, that when shorted, make the flash go off? If not, please explain the circuit.
  

  Posted by Megavolt on March 27, 2008 at 23:28:31 Pacific Time

• Voltage
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  Hey, I'm more of a photographer than an electric guy, however, I don't want to pay $100 for a kit.
  
  Not including the mic, battery, and camera, how much does making it yourself cost approximately?
  
  Also, being as this is the first complicated circuit I'll have built, does it matter what the voltage on the radial ceramic disc capacitors is? Because the 500V ones are cheaper than the 1000V ones. What voltate works better? high or low?
  
  Thanks

  Posted by mplante on March 19, 2008 at 05:04:45 Pacific Time

• PCB
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  Is the PCB in your kit a single sided design? Also, I am interested in building my own controller. Is it possible you could provide the schematic and PCB files from gschem and PCB? Thank you. By the way, I love the project, it seems really cool.

  Posted by veldel37 on March 09, 2007 at 13:24:46 Pacific Time

• Read the entire article online for free!
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  Here is the link to the whole
  
  
  High Speed Flash Photography article online. Thanks to the cool guys at Make for making this article free for everyone, not just subscribers!
  

  Posted by TomAnderson on February 21, 2007 at 20:40:20 Pacific Time

• shutter button
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  How do you synchronize the flash and shutter button? Although the flash is triggered by sound (or light) the shutter button is not. So it seems to me that you have to be able to respond the sound as quickly as the flash does in order to capture the event on camera.

  Posted by ghtfryj on February 21, 2007 at 13:45:36 Pacific Time

• PCB scheme
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  Can i have pcb scheme please?
  OR where can i find it?
  
  Thank you.

  Posted by stefrabid on December 30, 2006 at 10:50:32 Pacific Time

• U1 and V1
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  Hi I was wondering if someone could suggest an alternative (or alternative supplier) to the MC33201 opamp as well as the V18ZA2 varister. Digikey seems to only offer these parts in quantities of 1100 and 5000, and I only need a handful of them to build the circuit. Thanks

  Posted by chris111 on June 29, 2006 at 18:30:30 Pacific Time

• Multiple triggers?
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  I am looking for a circuit that will trigger a strobe three times at 0.2 sec interval, followed by a 1.4 sec down time (actually, I want to alternate between two tubes, each running the pattern alternately, so that there will be 3 flashes from one, a 0.4 sec pause, 3 flashes from the other, and a 0.4 sec pause before starting the cycle over). This will be run from 12 VDC. Low heat is am important factor vis. the tubes themselves.
  
  I have purchased a commercial unit, but it maxes out at about 0.5 hz, too slow for my app. I have not broken open the "black box" yet to see what it has for componentry, but I am unsure as to whether I can modify this unit for such a fast recycle.
  
  I have looked here and it seems like I could build two trigger circuits, one for each tube, and use a 4017 decade counter to trigger the 3 flashes from each tube (tie together outputs 0, 1 and 2 and send them to trigger #1, and tie together outputs 5, 6 and 7 and send them to trigger #2, with clock to the 4017 being provided by a 555 set to 5 hz). Also, I looked here, and it looks like a buffer capacitor would be the good answer for allowing reasonably powered flash events in quick succession, considering the 1.4 sec. "recycle" time for the buffer cap.
  
  Designing circuits like this is not my forte. It won't be a commercial design, so would someone be interested in helping me with design, and parts sourcing? Low cost is important here. I'm tempted to crack open one of the trigger boxes I have here to see if I can salvage any components (AFTER discharging the big cap, of course!).
  
  Thanks for any and all help; you can email me schematics or details/info at espresso (underscore) doppio (at) yahoo (dot) com

  Posted by Azraphale on May 06, 2006 at 02:22:42 Pacific Time

• Cheep flash assemblies...
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  Cheep flash assemblies... so you don't have to take apart the disposable camera.
  
  http://www.allelectronics.com/cgi-bin/item/FSH-12/100/FLASH_ASSEMBLY_.html

  Posted by bob_log on March 20, 2006 at 01:02:32 Pacific Time

• MC33201 Opamp -vs- ?
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  How critical is the gain on the Amplifier Block? Could the MC33201 be swaped out for another Opamp? Like a L272 or a LM386N.

  Posted by bob_log on March 19, 2006 at 14:45:50 Pacific Time

• PCB
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  Does anybody have a PCB Layout file? If so, can you provide me with it? I'm ready to make my board.
  
  Thanks,
  
  Chris

  Posted by sirhc108 on March 17, 2006 at 22:51:38 Pacific Time

• No Flash
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  I built the cicuit (correctly, I hope :) ), but when I plug the one time use camera, the flash refuses to fire even if I short the two prongs. If I unplug the flash controller though, I can cause the camera to flash by shorting the two prongs. Would you have any idea what's wrong, or do I just need to calmly sit down and check the whole circuit again. Thank you very much for the great article.

  Posted by veldel37 on March 14, 2006 at 07:33:45 Pacific Time

• R4, R13
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  Are R4 and R13 resistors as shown on the parts list or are they potentiometers as shown by the schematic? That is sort of confusing me. Thanks.

  Posted by veldel37 on March 05, 2006 at 17:04:21 Pacific Time

• Broken Link
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  Can anyone send me the pdf file of the circuit diagram? The link seems to be broken. kirklauren@gmail.com

  Posted by laurenkirk on February 17, 2006 at 12:38:15 Pacific Time

• Capacitors
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  What kind of capacitor is C8? Thanks.

  Posted by veldel37 on February 07, 2006 at 14:35:54 Pacific Time

• Strobe Photogrophy...
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  Hi, i dont really understand how this system works. Surely a rythmic flash will only freeze images that are rotating? Does the device connect in any way to the camera or does it just flash? do you still have to try and press the button at the right time to catch the image?
  
  Thanks for any info.

  Posted by hoarp001 on January 12, 2006 at 06:44:15 Pacific Time

• Need Some Help With schematics
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  Dear Makers,
  I have a few questions about the sound trigger flash circuit diagram:
  1) What is the Vcc
  
  2)my 2.5mm conn looks like this
  _____
  |< >|
  | >|
  |< _|
  |_| Which prongs are M1, M4, M5, M6
  
  Also for the ¼ in conn mine looks like this
  
  __________________________
  | |--- |__|
  |
  |_______________|-------
  Which prongs are S, T, and R
  
  3)what does an arrow pointing to a resistor mean?
  
  4)for my 3.5mm audio conn, mine only has 4 conductors, the one in the diagram has 5, will mine work? It is a sj-43514
  
  Thanks for the help!
  

  Posted by vzw3s on January 04, 2006 at 01:23:03 Pacific Time

• How do you use your digital camera in place of the disposable camera?
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  Maybe I missed something but how would I use my digital camera?

  Posted by Netminder25 on November 30, 2005 at 13:07:08 Pacific Time

• protective goggles...
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  before anyone goes about trying out this project, i would like to point out something that might be obvious to others, but wasn't to be the first time i picked apart a disposable camera: wear protective goggles!
  
  two years ago i walked around with a huge trashbag and collected some 150 disposable cameras from small photo-stores that were more than happy to get rid of them. i wanted to harves the batteries, capacitators and the shutter-mechanisms (i'm a photographer by trade).
  i got zapped quite in the beginning until i put on some rubber gloves and shorted the capacitator when cracking the cameras open. sparks were flying from circuit-boards, and it was when one hit me just below one eye and left a burn mark that i got up and got some eye-gear.
  
  really, it's such an obvious thing to do, but if i didn't think of it, there's a risk someone else wont either.
  
  

  Posted by f64 on November 03, 2005 at 08:26:51 Pacific Time

• If the kits sell out or are too expensive..
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  Perhaps the kit is either a little pricey (especially once converted to UK pounds plus tax plus shipping) or they may sell out.. In which case you may be intrested to see this site which sells similar kits:
  http://www.hiviz.com/
  with some tutorials and other information on high-speed photography.

  Posted by willwade on October 30, 2005 at 13:15:21 Pacific Time

• Kit?
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  The article was quite interesting (just got my copy of Make 4 yesterday), but it referenced a kit version (where you would have to solder the board) didn't it? Is that available somewhere?

  Posted by mbcook on October 28, 2005 at 13:35:45 Pacific Time