Collin’s Lab: DIY Contact Mic

It’s amazing what a little disk can do … when it’s layered with piezoelectric crystals. Piezo disks are impressively sensitive to vibration and can easily be adapted to work as a contact microphones. The trick is the preamp – a basic circuit used to match the piezo’s signal to levels compatible with modern audio gear inputs. The resulting piezo/preamp combo can be used for electrifying an acoustic guitar or simply exploring the lesser-heard world of small sound around us.

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DIY Contact Mic – Collin’s Lab

It’s amazing what a little disk can do … when it’s layered with piezoelectric crystals. Piezo disks are impressively sensitive to vibration and can easily be adapted to work as a contact microphones. The trick is the preamp – a basic circuit used to match the piezo’s signal to levels compatible with modern audio gear inputs. The resulting piezo/preamp combo can be used for electrifying an acoustic guitar or simply exploring the lesser-heard world of small sound around us.

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Secret Santa: Jason Babler – W40K Harlequins

My spin of the Secret Santa wheel placed MAKE’s art director, Jason Babler, squarely within my gift-giving crosshairs. Having never officially met Jason in corporeal meatspace, I was a bit stumped as to what material item he might enjoy owning. Thankfully, a little bird (named Gareth) clued me in on Mr. Babler’s appreciation of fantasy-themed resin kits.

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Phantastron Synthesizer Kit

In an alternate Old West universe, folks played synthesizers, and they called ‘em “Phantastrons.” Incorporating tubes, steel panels, and a branded wooden crate ripe for customization, this is one unusual synth kit. The power supply comes mostly assembled, but the 30s-era “turret board” is a challenge for seasoned solderers. Not your standard volt-per-octave functionality; this oscillator […]

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