Mina Violin Electronics Adapter

Wanted to use a $12 "CV-210E" piezo pickup with active preamp I found on eBay (like [this one on AliExpress](https://www.aliexpress.com/item/Electric-Violin-Pickup-Adjustable-Pickup-Piezo-Pickups-EQ-Parts-Accessories-20-12/32849083156.html?spm=a2g0o.productlist.0.0.6f8bfedbPjvFsI&algo_pvid=5f85d09c-6241-4f57-8ea7-90dcf375ce82&algo_expid=5f85d09c-6241-4f57-8ea7-90dcf375ce82-0&btsid=95760b89-7b24-48c4-bc72-72fead0080b5&ws_ab_test=searchweb0_0,searchweb201602_7,searchweb201603_52)) with the Mina violin, so I designed an adapter.

Note that you'll have to take the faceplate off the preamp and the battery terminals out of the battery cover to use this. You'll also have to swap out the screws holding the mid-body pieces on for ones 2mm longer. The ones you're using now are probably too short to accommodate both the jacks enclosure and the mid-body "wings."

The walls are a little too thick for the headphone jack to leave any room for its mounting nut, but there was just enough room behin