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QTC trigger?

PostPosted: Fri Jan 16, 2009 1:28 pm
by krchnakp
Hello, is it possible to use trigger based on Quantum tunnelling composite pills instead of piezo trigger?
Pavel

Re: QTC trigger?

PostPosted: Fri Jan 16, 2009 2:05 pm
by dmitri
krchnakp wrote:Hello, is it possible to use trigger based on Quantum tunnelling composite pills instead of piezo trigger?
Pavel

Any trigger which produces variable output voltage with variable hit force can be used with MegaDrum.
Compared to piezo, QTC requires an external current source and is more expensive. Don't know it's dynamic characteristics though.

Re: QTC trigger?

PostPosted: Fri Jan 16, 2009 7:39 pm
by krchnakp
Thank You Dmitri

Re: QTC trigger?

PostPosted: Mon Jan 19, 2009 10:11 am
by Ken Forgettable
krchnakp wrote:Hello, is it possible to use trigger based on Quantum tunnelling composite pills instead of piezo trigger?
Pavel


Teeny tiny QTC pills are available for about 12p; sheets of the stuff can be cut into any shape for about £1.50.
A cable (BNC connections) would also reduce it's resistance if twisted or bent by your hihat pedal.

Re: QTC trigger?

PostPosted: Mon Jan 19, 2009 11:30 am
by dmitri
Ken Forgettable wrote:
krchnakp wrote:Hello, is it possible to use trigger based on Quantum tunnelling composite pills instead of piezo trigger?
Pavel


Teeny tiny QTC pills are available for about 12p; sheets of the stuff can be cut into any shape for about £1.50.
A cable (BNC connections) would also reduce it's resistance if twisted or bent by your hihat pedal.

This still leaves the question of providing external voltage.

Re: QTC trigger?

PostPosted: Fri Jan 23, 2009 4:55 pm
by Ken Forgettable
dmitri wrote: This still leaves the question of providing external voltage.


Maybe that's right - am I off topic to call a CC control like your optical hihat CC a trigger?

dmitri wrote: ... Don't know it's dynamic characteristics though.


Peratech make differing composites, I have cable which is doing something like
http://www.dur.ac.uk/psm.group/qtcposter.pdf

Re: QTC trigger?

PostPosted: Sat Jan 24, 2009 2:41 am
by jamalpiper
hmm, I'm not sure if this is a valid idea I don't know much about the material, would it be possible to say attach this directly into a drum head? How durable would this be?

Make a few rings of it and attach inside a drumhead, could work as a variation of positional sensing...

Is it sensitive to vibrations too? If not this could this be the holy grail of high crosstalk situations?

Imagine a mat that attaches over an acoustic cymbal and has three zones + choke?

Re: QTC trigger?

PostPosted: Mon Jan 26, 2009 12:07 am
by Ken Forgettable
... now imagine replacing the choke switch.

I like the cymbal idea because percussionists could use the so called choke just to muffle the reverberation of the thing.
I think the hihat was invented to do what the old swing guys did on a ride cymbal.
Gongs get warmed up for the big one by getting the outer edge quietly vibrating whilst muffling the volume from the center.
Use a violin bow on the edge of large crash and you can very nearly pick off and mute individual overtones with your finger.

You need to be a nutter to like that sort of thing.

Also you may be interested in a simmons pad on steroids http://uk.youtube.com/watch?v=ovFF4hLnOJ4
Come to think of it he'll soon be on steroids playing that thing all night ...