Built a contact mic for string instruments.

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I have a Schertler Dynamic type contact mic inside my Mix A5.. TRS 1/4" end button-jack .

works & sounds good & is reliable. made in Switzerland.. :mandosmiley:

Already many Piezo electric wafers stuck on the underside of hundreds of Mandolincafe Member's Mandolin's tops.

and their owners touting their impression of what they own , check them out..


:popcorn:

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Originally Posted by mandroid

I have a Schertler Dynamic type contact mic inside my Mix A5.. TRS 1/4" end button-jack .

works & sounds good & is reliable. made in Switzerland..

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yeah ... not available in India though, at least not without serious mark-up. :-)

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Originally Posted by mandroid

Already many Piezo electric wafers stuck on the underside of hundreds of Mandolincafe Member's Mandolin's tops.

and their owners touting their impression of what they own , check them out..

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I can pretty much guarantee that no one has built something exactly like my pickup.

I assembled the transducer myself as well as the preamplifier circuit (yes, it's a cheap piezo disc, but modified - I haven't seen anything resembling it commercially); it is completely balanced from beginning to end, so (almost) no noise; phantom-powered like a condenser mic, so no batteries needed; and works without modification on different instruments all the way down to cello range (and even bass, but there's no substitute for a really good microphone).

Also most relevant: most of the commercial ones given here, if they are available in India where I live, are marked up to 1.5x - 2x the cost due to import tariffs. And most of the best ones are simply not available at all, apart from being super expensive.
Not very friendly for small-time musicians like me.

Good luck, I know nothing about the mandolin market place on the Indian subcontinent.

I'm certainly not planning to import any to the USA.. you grow your own piezoelectric materials ?

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Originally Posted by mandroid

you grow your own piezoelectric materials ?

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Not to my knowledge I can't grow anything, lol. But I certainly had to braid my own wires and assemble my own circuits and enclosures, and I did assemble the piezo disc itself into a new configuration.