Weekend Projects - Optical Tremolo Box
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- čas přidán 22. 08. 2012
- Complete instructions for this episode of Weekend Projects can be found at
makeprojects.com/Project/Optic...
Find more at the Maker Shed: makershed.com
Make: Electronics, 3rd Edition: www.makershed.com/products/ma...
Inspired by Charles Platt's "Stomp Box Basics" article (MAKE Volume 15, page 82), follow along as we build this Optical Tremolo Box, which reads a patterned disk with a light sensor to create a warbling audio effect (tremolo).
For this project, MAKE Technical Editor Sean Ragan used a cadmium sulfide photoresistor to provide us with our light sensor - a component we have used in previous Weekend Projects. Not only does it look cool and sound great, but once you've made the project, you can customize it by making your own effects disks!
Learn more here:
makezine.com/video/weekend-pro... - Věda a technologie
This is pretty much just an LFO, and the disc is essentially a pulse wave. You could make it modulate things other than volume pretty easily.
this is actually a really freaking cool project
Does it go to eleven?
Absolutely fab! Must make one of these once I get the time!
I can't wait to make this! This actually looks pretty useful!
Great idea, great sound, big room for experimentation. The only thing the pedal is missing is a footswitch instead of a flick switch. That's a bit counter intuitive.
Love this project
I'm going to be testing whether I can replace the small discs with the plastic CD blanks. Then instead of using a project box as a housing I will use a CD ROM drive, just slightly modify it. Hopefully it's successful, I'll share a quick video of it if it works.
This is really cool and useful! Thanks
And this is why i love this utube channel.
8:10 sounds kinda like minecraft music
This is pretty neat!
Mind blown!
very cool but it needs some sort of shielding so venue lights don't affect it.
You may want to build a true bypass box to pair with this thing unless you want major tone suck when the pedal is off if chaining it to other pedals. But still awesome.
this would make a great gift.
awesome!!!
Very cool. I will be building one of these on a LARGE scale. As you said early in the video it "Looks cool", and therefor I plan to make one that doubles as a stage prop.
Advise for all who try this...You are passing unamplified signal through this box - shielding is a good idea.
Why not connect the LED to a microcontoller PWM output (or even DAC) and get rid of that dodgy rotating wheel?
Hey one thing I would do- Put a push button switch instead, one that can be switched with your foot. Now it's a stomp box! Cool video guy's KAPAU
OOOH! i need to make one! :D
i love this
Wow awesome
I see what im doing this weekend!!
must build!!
This looks interesting
i wonder what a pattern of ancient gallifreyan would sound like
Hello, I would like to ask what is the pedal's size?
does the size "11.5x6.5x3.5cm" fine?
or "11.8cm x 9.3cm x 3.7cm" is better?
Thank you, hope you could reply this question soon! :)
Great project. I have a couple of questions. Why not use two potentiometer with different values to control speed and effect instead of a pot and a rheostat? That is a cool switch but I think you can swap out the DPDT for a SPDT switch with and just not have a reverse option, right? I just ask because for guitar tinkerers often have these parts on hand.
if I build this though I want to bust up an old cd player and use the parts that hold a cd in and print the discs off on the clear plastic disc that come with CDR packs
cool!
Will this work accordingly with gradients on the discs? (volume gradually fluctuating)
should do as the gradient will just smoothly increase/decrease the light hitting the sensor which smoothly changes the resistance so smoothly changes the volume as well.
Has anyone completed this project yet? If so what was the total cost of supplies? Thanks for any input. This looks interesting.
does anyone know how much this would cost if one got all new parts (sans tools)
I'm using a light sensor as a killswitch in my guitar
this is so awesome, you can make fallout new vegas music with this :D
Challenge accepted, Electronic Didgeridoo Tremolo!
cool
WOW
Interesting...
BEST+++++
the new part is the spinning disk
I have a wha-wha peddle that uses optical instead of pots
Great project! HOWEVER- there are a few things that would make it useful to a musician-
1. You may want to consult with a working musician (one that gigs a lot) to find out all the idiosyncracies with the unit. A regular (guitarist in this case) would never stop playing to use his hands to turn the switch on. So a push-on push-off switch (industrial strength) for stomping on with your foot, is required. Organ and pedal-steel players would use it this way as well.
So an optical Leslie.
well, thats going into a guitar
2. Since the unit would be attached to a pedal board (carpeted), the bottom feet would be useless. We use Velcro on the bottom of our pedals.
3. Since its used in a low-light, but rapidly changing light environment (stage), the light disc area would best be covered yet still accessible, possibly by a 3 sided cover.
4. the on/off switch would need to be wired as "true bypass" which gives a completely clean signal
take a shot every time he say heat shrink tubing
Trololol box
cool