"Bongo Trigger Pad"

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MrTea
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"Bongo Trigger Pad"

Post by MrTea » Wed Mar 17, 2010 7:56 am

I love the look of the trigger pad that you see at around 2 mins into this video. Is that something that is easy to make? It looks like 2 bits of cork held together with some electrical tape, but being a bit of DIY noob, I'm not sure what it's innards would contain.

If anybody could point me in the right direction I'd be very grateful.

[video][/video]

sorteper
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Post by sorteper » Wed Mar 17, 2010 8:13 am

The Electronic Drum Cookbook by Thomas Henry has a very thorough description on how to make a bongo-style trigger pad. Cannot recommend the Cookbook highly enough. Available either as pdf or paperback for $15 through Magic Smoke.

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MrTea
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Post by MrTea » Wed Mar 17, 2010 11:15 am

Looks great, thanks.

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sgnelson
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Post by sgnelson » Wed Mar 17, 2010 12:15 pm

I wouldn't quote me on this, but my guess is that it's simply a piezoelectric ($1 from radio shack) buzzer put in between two pieces of cork and taped together with a 1/8 jack.

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MrTea
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Post by MrTea » Wed Mar 17, 2010 2:15 pm

sgnelson wrote:I wouldn't quote me on this, but my guess is that it's simply a piezoelectric ($1 from radio shack) buzzer put in between two pieces of cork and taped together with a 1/8 jack.
Nice, I soldered one to jack the other day so will try it out. Any idea what sort of voltage they put out?

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bsmith
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Post by bsmith » Wed Mar 17, 2010 3:14 pm

sgnelson wrote:I wouldn't quote me on this, but my guess is that it's simply a piezoelectric ($1 from radio shack) buzzer put in between two pieces of cork and taped together with a 1/8 jack.
Thanks for this nugget - it totally works. 2 bucks later I'm patented-bongoing out.

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Post by modularland » Wed Mar 17, 2010 3:32 pm

which piezo did you use?
Steve L

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MrTea
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Post by MrTea » Wed Mar 17, 2010 3:50 pm

Yep it works a treat. Had mine in the middle of a book. Happily triggered a Doepfer envelope generator.

:tu:

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bsmith
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Post by bsmith » Wed Mar 17, 2010 3:58 pm

modularland wrote:which piezo did you use?
used a radioshack 273-073 -cheapest they had - says 30Vmax. Makes a cute little osc-output-checker-outer thing too.

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numan7
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Post by numan7 » Wed Mar 17, 2010 4:03 pm

Using Piezos is cheating! It baffles me why the diy sites seem to imply you need piezos (hint - 1 wire from a voltage source in to plate a, 1 wire out from plate b to eg gate in).

I only needed cardboard, foam, foil, tape and a pair of wires...

Works great too!

Cheers

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sgnelson
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Post by sgnelson » Wed Mar 17, 2010 4:10 pm

using piezo;s may be cheating, but they're so fun and useful for so many other things! I love cheap, home made piezo mics, i've been using them for years, they're one of the greatest, cheapest little accessories a noise maker can have. So when you're done with your homemade bongo pad's, take the piezo mic, put it in a coke can, put it through a good (or bad!) preamp and then have fun with your $2 microphone.

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